ShellCommandPage: Handle reject

Change-Id: I310b55a4832c169df68d5fd13311bba66dbd973f
Reviewed-by: Orgad Shaneh <orgads@gmail.com>

src/libs/utils/shellcommandpage.cpp

@@ -151,6 +151,15 @@ void ShellCommandPage::terminate()
         m_command->cancel();
 }
 
+bool ShellCommandPage::handleReject()
+{
+    if (!isRunning())
+        return false;
+
+    terminate();
+    return true;
+}
+
 bool ShellCommandPage::isComplete() const
 {
     return m_state == Succeeded;