diff --git a/GIT-VERSION-GEN b/GIT-VERSION-GEN
index 1ce217dd7b..14923c973b 100755
--- a/GIT-VERSION-GEN
+++ b/GIT-VERSION-GEN
@@ -3,9 +3,17 @@
 GVF=GIT-VERSION-FILE
 DEF_VER=v1.4.2.GIT
 
+LF='
+'
+
 # First try git-describe, then see if there is a version file
 # (included in release tarballs), then default
-if VN=$(git describe --abbrev=4 HEAD 2>/dev/null); then
+if VN=$(git describe --abbrev=4 HEAD 2>/dev/null) &&
+   case "$VN" in
+   *$LF*) (exit 1) ;;
+   v[0-9]*) : happy ;;
+   esac
+then
 	VN=$(echo "$VN" | sed -e 's/-/./g');
 elif test -f version
 then
diff --git a/builtin-mv.c b/builtin-mv.c
index e47942c135..ce8187c1e9 100644
--- a/builtin-mv.c
+++ b/builtin-mv.c
@@ -48,7 +48,8 @@ static const char *add_slash(const char *path)
 	if (path[len - 1] != '/') {
 		char *with_slash = xmalloc(len + 2);
 		memcpy(with_slash, path, len);
-		strcat(with_slash + len, "/");
+		with_slash[len++] = '/';
+		with_slash[len] = 0;
 		return with_slash;
 	}
 	return path;
diff --git a/git-compat-util.h b/git-compat-util.h
index 93f558056d..3bcf5b13f2 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -91,6 +91,9 @@ static inline void *xmalloc(size_t size)
 		ret = malloc(1);
 	if (!ret)
 		die("Out of memory, malloc failed");
+#ifdef XMALLOC_POISON
+	memset(ret, 0xA5, size);
+#endif
 	return ret;
 }
 
diff --git a/git.c b/git.c
index 96e596b1a3..db0f86790d 100644
--- a/git.c
+++ b/git.c
@@ -252,7 +252,7 @@ static void handle_internal_command(int argc, const char **argv, char **envp)
 		{ "pack-objects", cmd_pack_objects, RUN_SETUP },
 		{ "prune", cmd_prune, RUN_SETUP },
 		{ "prune-packed", cmd_prune_packed, RUN_SETUP },
-		{ "push", cmd_push },
+		{ "push", cmd_push, RUN_SETUP },
 		{ "read-tree", cmd_read_tree, RUN_SETUP },
 		{ "repo-config", cmd_repo_config },
 		{ "rev-list", cmd_rev_list, RUN_SETUP },