ref: a79e7c463a998eb249b2c6d0d010e7540a329ce2
parent: 5c912d084931b4aa91103718bc8d59c2c982d9ad
author: aabacchus <bvnfuller@gmail.com>
date: Sun May 22 18:51:23 EDT 2022
post: print usage to stderr and return 1 on bad options so that if an incorrect option is given in a pipeline, the error message can be seen.
--- a/post.c
+++ b/post.c
@@ -640,8 +640,8 @@
} else if (argv[i][0] == '-' && argv[i][1] == 'l') {landscape = 1;
} else {- printf("%s", usage);- return 0;
+ fprintf(stderr, "%s", usage);
+ return 1;
}
}
if (landscape) {