remove wordexp and use QProcess::splitCommand instead

Index: src/Plugins/Qt/QTMPipeLink.cpp
--- src/Plugins/Qt/QTMPipeLink.cpp.orig
+++ src/Plugins/Qt/QTMPipeLink.cpp
@@ -17,7 +17,7 @@
 
 #ifdef OS_MINGW
 #include <windows.h>
-#elif !defined(OS_ANDROID)
+#elif !defined(OS_ANDROID) && !defined(__OpenBSD__)
 #include <wordexp.h>
 #endif
 
@@ -75,7 +75,7 @@ QTMPipeLink::launchCmd () {
 
   LocalFree(argv);
 
-#elif !defined(OS_ANDROID)
+#elif !defined(OS_ANDROID) && !defined(__OpenBSD__)
   wordexp_t exp;
   memset(&exp, 0, sizeof(exp));
 
