tree 178844eb3ef0532330b776a4076db4bfa25ca136
parent 1a0c7fb38355ace2edade9a124b73e989de08f32
author Rodrigo Dias Correa <rodrigo@correas.us> 1604986130 -0300
committer Rodrigo Dias Correa <rodrigo@correas.us> 1606583089 -0300

Fix GCC warning about `test_snprintf`

GCC 11 generated the warnings because the parameter `ret_buf`
was declared as `const char[10]`, but some of the arguments
provided in `run_test_snprintf` are shorter literals, like "".

Now the type of `ret_buf` is `const char *`.
Both implementations of `test_snprintf` were fixed.

Signed-off-by: Rodrigo Dias Correa <rodrigo@correas.us>