tools: fix warnings from Ubuntu strict compiler.
[ccan] / tools / ccanlint / tests /
drwxr-xr-x   ..
-rw-r--r-- 3750 has_info_documentation.c
-rw-r--r-- 3791 idempotent.c
-rw-r--r-- 3397 run_tests_valgrind.c
-rw-r--r-- 1336 trailing_whitespace.c