fix other tests failing due to change in case or new suggestion for extern crate

src/test/ui/issues/issue-19498.stderr

@@ -8,7 +8,7 @@ LL | mod A {} //~ ERROR the name `A` is defined multiple times
    | ^^^^^ `A` redefined here
    |
    = note: `A` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use self::A as OtherA;
    |     ^^^^^^^^^^^^^^^^^
@@ -23,7 +23,7 @@ LL | pub mod B {} //~ ERROR the name `B` is defined multiple times
    | ^^^^^^^^^ `B` redefined here
    |
    = note: `B` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use self::B as OtherB;
    |     ^^^^^^^^^^^^^^^^^
@@ -37,7 +37,7 @@ LL |     mod D {} //~ ERROR the name `D` is defined multiple times
    |     ^^^^^ `D` redefined here
    |
    = note: `D` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL |     use C::D as OtherD;
    |         ^^^^^^^^^^^^^^

src/test/ui/issues/issue-24081.stderr

@@ -8,7 +8,7 @@ LL | type Add = bool; //~ ERROR the name `Add` is defined multiple times
    | ^^^^^^^^^^^^^^^^ `Add` redefined here
    |
    = note: `Add` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use std::ops::Add as OtherAdd;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -23,7 +23,7 @@ LL | struct Sub { x: f32 } //~ ERROR the name `Sub` is defined multiple times
    | ^^^^^^^^^^ `Sub` redefined here
    |
    = note: `Sub` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use std::ops::Sub as OtherSub;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -38,7 +38,7 @@ LL | enum Mul { A, B } //~ ERROR the name `Mul` is defined multiple times
    | ^^^^^^^^ `Mul` redefined here
    |
    = note: `Mul` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use std::ops::Mul as OtherMul;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -53,7 +53,7 @@ LL | mod Div { } //~ ERROR the name `Div` is defined multiple times
    | ^^^^^^^ `Div` redefined here
    |
    = note: `Div` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use std::ops::Div as OtherDiv;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -68,7 +68,7 @@ LL | trait Rem {  } //~ ERROR the name `Rem` is defined multiple times
    | ^^^^^^^^^ `Rem` redefined here
    |
    = note: `Rem` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use std::ops::Rem as OtherRem;
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^

src/test/ui/issues/issue-25396.stderr

@@ -7,7 +7,7 @@ LL | use bar::baz; //~ ERROR the name `baz` is defined multiple times
    |     ^^^^^^^^ `baz` reimported here
    |
    = note: `baz` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use bar::baz as other_baz; //~ ERROR the name `baz` is defined multiple times
    |     ^^^^^^^^^^^^^^^^^^^^^
@@ -21,7 +21,7 @@ LL | use bar::Quux; //~ ERROR the name `Quux` is defined multiple times
    |     ^^^^^^^^^ `Quux` reimported here
    |
    = note: `Quux` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use bar::Quux as OtherQuux; //~ ERROR the name `Quux` is defined multiple times
    |     ^^^^^^^^^^^^^^^^^^^^^^
@@ -35,7 +35,7 @@ LL | use bar::blah; //~ ERROR the name `blah` is defined multiple times
    |     ^^^^^^^^^ `blah` reimported here
    |
    = note: `blah` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use bar::blah as other_blah; //~ ERROR the name `blah` is defined multiple times
    |     ^^^^^^^^^^^^^^^^^^^^^^^
@@ -49,7 +49,7 @@ LL | use bar::WOMP; //~ ERROR the name `WOMP` is defined multiple times
    |     ^^^^^^^^^ `WOMP` reimported here
    |
    = note: `WOMP` must be defined only once in the value namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use bar::WOMP as OtherWOMP; //~ ERROR the name `WOMP` is defined multiple times
    |     ^^^^^^^^^^^^^^^^^^^^^^

src/test/ui/issues/issue-26886.stderr

@@ -7,7 +7,7 @@ LL | use std::sync::Arc; //~ ERROR the name `Arc` is defined multiple times
    |     ^^^^^^^^^^^^^^ `Arc` reimported here
    |
    = note: `Arc` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use std::sync::Arc as OtherArc; //~ ERROR the name `Arc` is defined multiple times
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
@@ -22,7 +22,7 @@ LL | use std::sync; //~ ERROR the name `sync` is defined multiple times
    |     ^^^^^^^^^ `sync` reimported here
    |
    = note: `sync` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use std::sync as other_sync; //~ ERROR the name `sync` is defined multiple times
    |     ^^^^^^^^^^^^^^^^^^^^^^^

src/test/ui/issues/issue-32354-suggest-import-rename.stderr

@@ -7,7 +7,7 @@ LL | use extension2::ConstructorExtension; //~ ERROR is defined multiple times
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ `ConstructorExtension` reimported here
    |
    = note: `ConstructorExtension` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | use extension2::ConstructorExtension as OtherConstructorExtension; //~ ERROR is defined multiple times
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

src/test/ui/issues/issue-45799-bad-extern-crate-rename-suggestion-formatting.stderr

@@ -5,7 +5,7 @@ LL | extern crate std;
    | ^^^^^^^^^^^^^^^^^ `std` reimported here
    |
    = note: `std` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL | extern crate std as other_std;
    |

src/test/ui/issues/issue-8640.stderr

@@ -7,7 +7,7 @@ LL |     mod bar {}
    |     ^^^^^^^ `bar` redefined here
    |
    = note: `bar` must be defined only once in the type namespace of this module
-help: You can use `as` to change the binding name of the import
+help: you can use `as` to change the binding name of the import
    |
 LL |     use baz::bar as other_bar;
    |         ^^^^^^^^^^^^^^^^^^^^^