fix further spelling errors / remove a tab in the source

src/init.cpp

@@ -255,7 +255,7 @@ bool AppInit2(int argc, char* argv[])
         // Remove tabs
         strUsage.erase(std::remove(strUsage.begin(), strUsage.end(), '\t'), strUsage.end());
 #if defined(QT_GUI) && defined(WIN32)
-        // On windows, show a message box, as there is no stderr
+        // On Windows, show a message box, as there is no stderr
         ThreadSafeMessageBox(strUsage, _("Usage"), wxOK | wxMODAL);
 #else
         fprintf(stderr, "%s", strUsage.c_str());

src/util.h

@@ -12,7 +12,7 @@
 #include <sys/time.h>
 #include <sys/resource.h>
 #else
-typedef int pid_t; /* define for windows compatibility */
+typedef int pid_t; /* define for Windows compatibility */
 #endif
 #include <map>
 #include <vector>