Fixed `run_handler (const gchar *act, const gchar *args)` by calling `inject_handler_args` only if `act` contains both a command and some parameters.

The problem is:
* when `act` has no spaces,
>    char **parts = g_strsplit(act, " ", 2);
* `parts[1]` is `NULL`, and thus the following is wrong,
>            gchar* expanded = expand(parts[1], 0);
>            inparts = inject_handler_args(parts[0], expanded, args);
* instead `inparts[1]` should be set equal with `args` and no expansion should occur.

1 files changed, 16 insertions, 6 deletions

diff --git a/uzbl-core.c b/uzbl-core.c
index d14764f..f0870fc 100644
--- a/uzbl-core.c
+++ b/uzbl-core.c
@@ -2143,15 +2143,25 @@ run_handler (const gchar *act, const gchar *args) {
         g_strfreev(chainparts);
 
     } else {
-        /* expand the user-specified arguments */
-        gchar* expanded = expand(parts[1], 0);
-        gchar **inparts = inject_handler_args(parts[0], expanded, args);
+        gchar **inparts;
+        gchar *inparts_[2];
+        if (parts[1]) {
+            /* expand the user-specified arguments */
+            gchar* expanded = expand(parts[1], 0);
+            inparts = inject_handler_args(parts[0], expanded, args);
+            g_free(expanded);
+        } else {
+            inparts_[0] = parts[0];
+            inparts_[1] = args;
+            inparts = inparts_;
+        }
 
         parse_command(inparts[0], inparts[1], NULL);
 
-        g_free(inparts[0]);
-        g_free(inparts[1]);
-        g_free(expanded);
+        if (inparts != inparts_) {
+            g_free(inparts[0]);
+            g_free(inparts[1]);
+        }
     }
     g_strfreev(parts);
 }