Fix condition for executable folders

If folders are marked as executable the runner will skip them
but we only want to skip files, because they are handled by
the shellrunner.

BUG: 432653
FIXED-IN: 5.21

runners/locations/locationrunner.cpp

@@ -52,7 +52,8 @@ LocationsRunner::~LocationsRunner()
 void LocationsRunner::match(Plasma::RunnerContext &context)
 {
     QString term = context.query();
-    if (QFileInfo(KShell::tildeExpand(term)).isExecutable()) {
+    QFileInfo tmpInfo(KShell::tildeExpand(term));
+    if (tmpInfo.isFile() && tmpInfo.isExecutable()) {
         return;
     }
     // We want to expand ENV variables like $HOME to get the actual path, BUG: 358221