Fix --showcmd bug

Only append 'fio' if this is the first time we see a [] section.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/init.c b/init.c
index b5f9abc..da2595c 100644
--- a/init.c
+++ b/init.c
@@ -555,6 +555,7 @@
 	FILE *f;
 	char *p;
 	int ret = 0, stonewall;
+	int first_sect = 1;
 
 	f = fopen(file, "r");
 	if (!f) {
@@ -587,9 +588,11 @@
 		name[strlen(name) - 1] = '\0';
 
 		if (dump_cmdline) {
-			log_info("fio ");
+			if (first_sect)
+				log_info("fio ");
 			if (!global)
 				log_info("--name=%s ", name);
+			first_sect = 0;
 		}
 
 		td = get_new_job(global, &def_thread);