git format-patch: avoid underrun when format.headers is empty or all NLs

[git.git] / var.c

diff --git a/var.c b/var.c
index c20ac919bdbe73c8cd7657d468d2dfbccf6d3aa2..f1eb314e899c518b8dea54b4ff8f3923da7b12cf 100644 (file)
--- a/var.c
+++ b/var.c
@@ -5,7 +5,7 @@
  */
 #include "cache.h"
 
-static const char var_usage[] = "git-var [-l | <variable>]";
+static const char var_usage[] = "git var [-l | <variable>]";
 
 struct git_var {
        const char *name;
@@ -39,13 +39,13 @@ static const char *read_var(const char *var)
        return val;
 }
 
-static int show_config(const char *var, const char *value)
+static int show_config(const char *var, const char *value, void *cb)
 {
        if (value)
                printf("%s=%s\n", var, value);
        else
                printf("%s\n", var);
-       return git_default_config(var, value);
+       return git_default_config(var, value, cb);
 }
 
 int main(int argc, char **argv)
@@ -60,11 +60,11 @@ int main(int argc, char **argv)
        val = NULL;
 
        if (strcmp(argv[1], "-l") == 0) {
-               git_config(show_config);
+               git_config(show_config, NULL);
                list_vars();
                return 0;
        }
-       git_config(git_default_config);
+       git_config(git_default_config, NULL);
        val = read_var(argv[1]);
        if (!val)
                usage(var_usage);