Ensure newlines are stripped from command line input

* These can be inserted via copy-paste even though Qt says that QLineEdit only
  does single line editing :(

qrenderdoc/Windows/Dialogs/CaptureDialog.cpp

@@ -963,7 +963,7 @@ CaptureSettings CaptureDialog::Settings()
 
   ret.executable = ui->exePath->text();
   ret.workingDir = ui->workDirPath->text();
-  ret.commandLine = ui->cmdline->text();
+  ret.commandLine = GetCommandLine();
 
   ret.environment = m_EnvModifications;
 
@@ -1081,6 +1081,13 @@ void CaptureDialog::SetCommandLine(const rdcstr &cmd)
   ui->cmdline->setText(cmd);
 }
 
+QString CaptureDialog::GetCommandLine()
+{
+  return ui->cmdline->text()
+      .replace(QLatin1Char('\n'), QLatin1Char(' '))
+      .replace(QLatin1Char('\r'), QLatin1Char(' '));
+}
+
 void CaptureDialog::LoadSettings(const rdcstr &filename)
 {
   SetSettings(LoadSettingsFromDisk(filename));
@@ -1227,7 +1234,7 @@ void CaptureDialog::TriggerCapture()
         workingDir = ui->workDirPath->text();
     }
 
-    QString cmdLine = ui->cmdline->text();
+    QString cmdLine = GetCommandLine();
 
     SaveSettings(mostRecentFilename());
 

qrenderdoc/Windows/Dialogs/CaptureDialog.h

@@ -67,6 +67,7 @@ public:
 
   void SetWorkingDirectory(const rdcstr &dir) override;
   void SetCommandLine(const rdcstr &cmd) override;
+  QString GetCommandLine();
   void SetEnvironmentModifications(const rdcarray<EnvironmentModification> &modifications) override;
 
   void SetSettings(CaptureSettings settings) override;