auto merge of #6184 : kud1ing/rust/master, r=sanxiyn

src/etc/unicode.py

@@ -235,6 +235,10 @@ for i in [r]:
 rf = open(r, "w")
 
 (canon_decomp, compat_decomp, gencats) = load_unicode_data("UnicodeData.txt")
+
+# Explain that the source code was generated by this script.
+rf.write('// The following code was generated by "src/etc/unicode.py"\n\n')
+
 emit_property_module(rf, "general_category", gencats)
 
 #emit_decomp_module(rf, canon_decomp, compat_decomp)

src/libcore/unicode.rs

@@ -10,6 +10,8 @@
 
 #[doc(hidden)]; // FIXME #3538
 
+// The following code was generated by "src/etc/unicode.py"
+
 pub mod general_category {
 
     fn bsearch_range_table(c: char, r: &'static [(char,char)]) -> bool {