scripted-diff: Convert global Mutexes to GlobalMutexes

-BEGIN VERIFY SCRIPT-
sed -i -E -e '/^([a-z]+ )?Mutex [a-z]/ s/Mutex/GlobalMutex/' $(git grep -lE '^([a-z]+ )?Mutex [a-z]')
-END VERIFY SCRIPT-

src/netbase.cpp

@@ -30,7 +30,7 @@
 #endif
 
 // Settings
-static Mutex g_proxyinfo_mutex;
+static GlobalMutex g_proxyinfo_mutex;
 static Proxy proxyInfo[NET_MAX] GUARDED_BY(g_proxyinfo_mutex);
 static Proxy nameProxy GUARDED_BY(g_proxyinfo_mutex);
 int nConnectTimeout = DEFAULT_CONNECT_TIMEOUT;