[nautilus] file-utilities: fix leaked path string

[Cosimo Cecchi <cosimoc src gnome org>]

commit 523073f86b983f2fa21c8a9b579c58df0293e081
Author: Pavel Vasin <rat4vier gmail com>
Date:   Fri Aug 24 15:14:19 2012 +0400

    file-utilities: fix leaked path string
    
    https://bugzilla.gnome.org/show_bug.cgi?id=682603

 libnautilus-private/nautilus-file-utilities.c |   14 +++++++++++++-
 1 files changed, 13 insertions(+), 1 deletions(-)
---
diff --git a/libnautilus-private/nautilus-file-utilities.c b/libnautilus-private/nautilus-file-utilities.c
index 22ccd00..8cb3359 100644
--- a/libnautilus-private/nautilus-file-utilities.c
+++ b/libnautilus-private/nautilus-file-utilities.c
@@ -748,13 +748,25 @@ nautilus_find_existing_uri_in_hierarchy (GFile *location)
 	return location;
 }
 
+static gboolean
+have_program_in_path (const char *name)
+{
+        gchar *path;
+        gboolean result;
+
+        path = g_find_program_in_path (name);
+        result = (path != NULL);
+        g_free (path);
+        return result;
+}
+
 gboolean
 nautilus_is_file_roller_installed (void)
 {
 	static int installed = - 1;
 
 	if (installed < 0) {
-		if (g_find_program_in_path ("file-roller")) {
+		if (have_program_in_path ("file-roller")) {
 			installed = 1;
 		} else {
 			installed = 0;