repo-config: fix printing of bool

When a bool variable appears without any value, it means true.
However, replacing the NULL value with an empty string, an earlier
commit f067a13745fbeae1aa357876348a00e5edd0a629 broke show-config.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/repo-config.c b/repo-config.c
index ab8f1afeea0cbff7707e313af1c18ff56363ae09..743f02b7de7b3b819d3db29ddfcdcf8ebacaccc4 100644 (file)
--- a/repo-config.c
+++ b/repo-config.c
@@ -29,16 +29,13 @@ static int show_config(const char* key_, const char* value_)
        const char *vptr = value;
        int dup_error = 0;
 
-       if (value_ == NULL)
-               value_ = "";
-
        if (!use_key_regexp && strcmp(key_, key))
                return 0;
        if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
                return 0;
        if (regexp != NULL &&
                         (do_not_match ^
-                         regexec(regexp, value_, 0, NULL, 0)))
+                         regexec(regexp, (value_?value_:""), 0, NULL, 0)))
                return 0;
 
        if (show_keys)
@@ -46,11 +43,11 @@ static int show_config(const char* key_, const char* value_)
        if (seen && !do_all)
                dup_error = 1;
        if (type == T_INT)
-               sprintf(value, "%d", git_config_int(key_, value_));
+               sprintf(value, "%d", git_config_int(key_, value_?value_:""));
        else if (type == T_BOOL)
                vptr = git_config_bool(key_, value_) ? "true" : "false";
        else
-               vptr = value_;
+               vptr = value_?value_:"";
        seen++;
        if (dup_error) {
                error("More than one value for the key %s: %s",