main: exit 1 on getopt() errors

When getopt() encounter an invalid or unknown argument,
it prints an error. However jsonpath ignored those and continued
anyways.
getopt() will print the error message to stderr.

Signed-off-by: Alexander Couzens <lynxis@fe80.eu>

1 files changed, 4 insertions, 0 deletions

diff --git a/main.c b/main.c
index 1b56978..97e5dac 100644
--- a/main.c
+++ b/main.c
@@ -533,6 +533,10 @@ int main(int argc, char **argv)
 		case 'q':
 			fclose(stderr);
 			break;
+		case '?':
+			/* invalid or unknown. getopt() prints the error to stderr */
+			rv = 1;
+			goto out;
 		}
 
 	}