Merge branch 'maint'

* maint: (35 commits)
  config.c: guard config parser from value=NULL
  builtin-log.c: guard config parser from value=NULL
  imap-send.c: guard config parser from value=NULL
  wt-status.c: guard config parser from value=NULL
  setup.c: guard config parser from value=NULL
  remote.c: guard config parser from value=NULL
  merge-recursive.c: guard config parser from value=NULL
  http.c: guard config parser from value=NULL
  help.c: guard config parser from value=NULL
  git.c: guard config parser from value=NULL
  diff.c: guard config parser from value=NULL
  convert.c: guard config parser from value=NULL
  connect.c: guard config parser from value=NULL
  builtin-tag.c: guard config parser from value=NULL
  builtin-show-branch.c: guard config parser from value=NULL
  builtin-reflog.c: guard config parser from value=NULL
  builtin-log.c: guard config parser from value=NULL
  builtin-config.c: guard config parser from value=NULL
  builtin-commit.c: guard config parser from value=NULL
  builtin-branch.c: guard config parser from value=NULL
  ...

1 files changed, 2 insertions, 0 deletions

diff --git a/git.c b/git.c
index 15fec8974..0cb86884d 100644
--- a/git.c
+++ b/git.c
@@ -93,6 +93,8 @@ static char *alias_string;
 static int git_alias_config(const char *var, const char *value)
 {
 	if (!prefixcmp(var, "alias.") && !strcmp(var + 6, alias_command)) {
+		if (!value)
+			return config_error_nonbool(var);
 		alias_string = xstrdup(value);
 	}
 	return 0;