[PATCH 15/13] compat/fnmatch: fix off-by-one character class's length check

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

Character class "xdigit" is the only one that hits 6 character limit
defined by CHAR_CLASS_MAX_LENGTH. All other character classes are 5
character long and therefore never caught by this.

This should make xdigit tests in t3070 pass on Windows.

Reported-by: Johannes Sixt <j6t@kdbg.org>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 I tested with Linux (removing the ifdef __LIBC in fnmatch.c) but I
 think this should get an ACK from someone who actually uses it on
 Windows.

 We may want to tell upstream (who?) about this if they haven't fixed
 it already.

 compat/fnmatch/fnmatch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compat/fnmatch/fnmatch.c b/compat/fnmatch/fnmatch.c
index 9473aed..0ff1d27 100644
--- a/compat/fnmatch/fnmatch.c
+++ b/compat/fnmatch/fnmatch.c
@@ -345,7 +345,7 @@ internal_fnmatch (pattern, string, no_leading_period, flags)
 
 		    for (;;)
 		      {
-			if (c1 == CHAR_CLASS_MAX_LENGTH)
+			if (c1 > CHAR_CLASS_MAX_LENGTH)
 			  /* The name is too long and therefore the pattern
 			     is ill-formed.  */
 			  return FNM_NOMATCH;
-- 
1.8.0.rc2.23.g1fb49df