Utils: Simplify QtcProcess::exitMessage() interface

This was requiring parameters the process object already knows.

This is a slight behavior change in most cases, it now includes
always the command line arguments, which previously only happened
in gcctoolchain.cpp and iarewtoolchain.cpp.

Change-Id: Id25a68c397e2f1d8bf52ab29210e215b1de46c6d
Reviewed-by: Christian Kandeler <christian.kandeler@qt.io>

src/plugins/android/androidcreatekeystorecertificate.cpp

@@ -202,8 +202,7 @@ void AndroidCreateKeystoreCertificate::buttonBoxAccepted()
 
     if (genKeyCertProc.result() != QtcProcess::Finished || genKeyCertProc.exitCode() != 0) {
         QMessageBox::critical(this, tr("Error"),
-                              genKeyCertProc.exitMessage(command.executable().toString(), 15)
-                                                     + '\n' + genKeyCertProc.allOutput());
+                              genKeyCertProc.exitMessage() + '\n' + genKeyCertProc.allOutput());
         return;
     }
     accept();