tools/rmmod: initialize use_syslog

Initialize the variable, otherwise we'll get (random) stack value if the
user hasn't provided --syslog. Reported by scan-build.

Fixes: 24fe68d ("tools/rmmod: make opt variables non-global")
Signed-off-by: Emil Velikov <[email protected]>
Link: #172
Signed-off-by: Lucas De Marchi <[email protected]>

tools/rmmod.c

@@ -94,7 +94,7 @@ static int do_rmmod(int argc, char *argv[])
 	struct kmod_ctx *ctx;
 	const char *null_config = NULL;
 	int verbose = LOG_ERR;
-	int use_syslog;
+	int use_syslog = 0;
 	int flags = 0;
 	int i, err, r = 0;