Warn when seeing a job option outside of a job section

Otherwise it's easy to screw up because fio will have ignored
a number of options. This has happened to me with bad pasting
of job files before, missing the starting '[' bracket.

Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/init.c b/init.c
index 51b9fa1..4fd41b7 100644
--- a/init.c
+++ b/init.c
@@ -547,11 +547,14 @@
 			break;
 
 		strip_blank_front(&p);
+		strip_blank_end(p);
 
 		if (is_empty_or_comment(p))
 			continue;
-		if (sscanf(p, "[%255s]", name) != 1)
+		if (sscanf(p, "[%255s]", name) != 1) {
+			log_err("fio: option <%s> outside of job section\n", p);
 			continue;
+		}
 
 		global = !strncmp(name, "global", 6);