nfsdcltrack: getopt_long() fails on a non x86_64 archs

getopt_long() returns an int, not char, which
matters on non-x86_64 archs since a char is
signed on x86_64 arch but unsigned on other
archs.

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1551903

Signed-off-by Steve Dickson <[email protected]>

---
 utils/nfsdcltrack/nfsdcltrack.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

utils/nfsdcltrack/nfsdcltrack.c +1 -1

index 76b06d2..b45a904 100644
@@ -553,7 +553,7 @@ find_cmd(char *cmdname)
 int
 main(int argc, char **argv)
 {
-	char arg;
+	int arg;
 	char *val;
 	int rc = 0;
 	char *progname, *cmdarg = NULL;