use xmalloc in git.c and help.c

diff --git a/environment.c b/environment.c
index fff4a4da50d1054dd3989d40ec5310ea7258f97c..22316597df60648c850001e068938eaf39d57f6d 100644 (file)
--- a/environment.c
+++ b/environment.c
@@ -27,6 +27,7 @@ const char *apply_default_whitespace;
 int zlib_compression_level = Z_DEFAULT_COMPRESSION;
 size_t packed_git_window_size = DEFAULT_PACKED_GIT_WINDOW_SIZE;
 size_t packed_git_limit = DEFAULT_PACKED_GIT_LIMIT;
+size_t delta_base_cache_limit = 16 * 1024 * 1024;
 int pager_in_use;
 int pager_use_color = 1;
 int auto_crlf = 0;     /* 1: both ways, -1: only when adding git objects */