Merge branch 'maint-2.1' into maint

* maint-2.1:
  is_hfs_dotgit: loosen over-eager match of \u{..47}

utf8.c

@@ -563,8 +563,8 @@ int mbs_chrlen(const char **text, size_t *remainder_p, const char *encoding)
 }
 
 /*
- * Pick the next char from the stream, folding as an HFS+ filename comparison
- * would. Note that this is _not_ complete by any means. It's just enough
+ * Pick the next char from the stream, ignoring codepoints an HFS+ would.
+ * Note that this is _not_ complete by any means. It's just enough
  * to make is_hfs_dotgit() work, and should not be used otherwise.
  */
 static ucs_char_t next_hfs_char(const char **in)
@@ -601,12 +601,7 @@ static ucs_char_t next_hfs_char(const char **in)
 			continue;
 		}
 
-		/*
-		 * there's a great deal of other case-folding that occurs,
-		 * but this is enough to catch anything that will convert
-		 * to ".git"
-		 */
-		return tolower(out);
+		return out;
 	}
 }
 
@@ -614,10 +609,23 @@ int is_hfs_dotgit(const char *path)
 {
 	ucs_char_t c;
 
-	if (next_hfs_char(&path) != '.' ||
-	    next_hfs_char(&path) != 'g' ||
-	    next_hfs_char(&path) != 'i' ||
-	    next_hfs_char(&path) != 't')
+	c = next_hfs_char(&path);
+	if (c != '.')
+		return 0;
+	c = next_hfs_char(&path);
+
+	/*
+	 * there's a great deal of other case-folding that occurs
+	 * in HFS+, but this is enough to catch anything that will
+	 * convert to ".git"
+	 */
+	if (c != 'g' && c != 'G')
+		return 0;
+	c = next_hfs_char(&path);
+	if (c != 'i' && c != 'I')
+		return 0;
+	c = next_hfs_char(&path);
+	if (c != 't' && c != 'T')
 		return 0;
 	c = next_hfs_char(&path);
 	if (c && !is_dir_sep(c))