Make extension match characters case-insensitive.

(closes issue #12777)
 Reported by: jsmith
 Patches: 
       lower_case_patterns-trunk-v1.patch uploaded by jsmith (license 15)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@121010 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/pbx.c

@@ -1483,7 +1483,7 @@ static int ext_cmp1(const char **p)
 		;	/* ignore some characters */
 
 	/* always return unless we have a set of chars */
-	switch (c) {
+	switch (toupper(c)) {
 	default:	/* ordinary character */
 		return 0x0000 | (c & 0xff);