maps: use uniform lifecycle management functions

Currently, the lifecycle functions for maps (allocation, deallocation, resize)
are not named in a uniform way and do not have a uniform function signature.
Rename the functions to fix that, and stick to libgit2's naming scheme of saying
`git_foo_new`. This results in the following new interface for allocation:

- `int git_<t>map_new(git_<t>map **out)` to allocate a new map, returning an
  error code if we ran out of memory

- `void git_<t>map_free(git_<t>map *map)` to free a map

- `void git_<t>map_clear(git<t>map *map)` to remove all entries from a map

This commit also fixes all existing callers.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/diff_driver.c b/src/diff_driver.c
index 05246dfa3..9bc266e02 100644
--- a/src/diff_driver.c
+++ b/src/diff_driver.c
@@ -63,7 +63,7 @@ git_diff_driver_registry *git_diff_driver_registry_new(void)
 	if (!reg)
 		return NULL;
 
-	if (git_strmap_alloc(&reg->drivers) < 0) {
+	if (git_strmap_new(&reg->drivers) < 0) {
 		git_diff_driver_registry_free(reg);
 		return NULL;
 	}