Plug a memory leak on Lua rpm.expand()

diff --git a/rpmio/rpmlua.c b/rpmio/rpmlua.c
index a2f70bf..1f9254a 100644 (file)
--- a/rpmio/rpmlua.c
+++ b/rpmio/rpmlua.c
@@ -604,7 +604,9 @@ static int rpm_b64decode(lua_State *L)
 static int rpm_expand(lua_State *L)
 {
     const char *str = luaL_checkstring(L, 1);
-    lua_pushstring(L, rpmExpand(str, NULL));
+    char *val = rpmExpand(str, NULL);
+    lua_pushstring(L, val);
+    free(val);
     return 1;
 }