CONTRIB: halog: fix issue with array of type char
I just noticed this in the windows build after moving the file to dev/:
In file included from include/import/ist.h:32,
from include/haproxy/connection-t.h:32,
from dev/flags/flags.c:5:
dev/flags/flags.c: In function `main':
dev/flags/flags.c:442:20: error: array subscript has type `char' [-Werror=char-subscripts]
442 | (isalnum(*err) && toupper(*err) != 'U' && toupper(*err) != 'L'))
| ^~~~
LD haproxy
cc1: all warnings being treated as errors
make: *** [Makefile:932: dev/flags/flags.o] Error 1
make: *** Waiting for unfinished jobs....
Error: Process completed with exit code 2.
Let's just cast it to uchar as is done everywhere else.
diff --git a/contrib/debug/flags.c b/contrib/debug/flags.c
index 044221e..669bd09 100644
--- a/contrib/debug/flags.c
+++ b/contrib/debug/flags.c
@@ -439,7 +439,7 @@
/* stop at the end of the number and trim any C suffix like "UL" */
err = value;
while (*err == '-' || *err == '+' ||
- (isalnum(*err) && toupper(*err) != 'U' && toupper(*err) != 'L'))
+ (isalnum((unsigned char)*err) && toupper((unsigned char)*err) != 'U' && toupper((unsigned char)*err) != 'L'))
err++;
if (err)
*err = 0;