memory: Add `free` wrapper and refactor project to use it

We already use wrappers for allocation, the new `xfree` function is the
equivalent for deallocation and provides a way to fully replace the malloc
implementation used by Neovim.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/nvim/strings.c b/src/nvim/strings.c
index dd10184d38..4e70f48860 100644
--- a/src/nvim/strings.c
+++ b/src/nvim/strings.c
@@ -269,7 +269,7 @@ char_u *strup_save(const char_u *orig)
         memcpy(s, res, (size_t)(p - res));
         STRCPY(s + (p - res) + newl, p + l);
         p = s + (p - res);
-        free(res);
+        xfree(res);
         res = s;
       }