Increase crashlog length limits

src/crashlog.cpp

@@ -477,7 +477,7 @@ bool CrashLog::MakeCrashLog() const
 	crashlogged = true;
 
 	char filename[MAX_PATH];
-	char buffer[65536 * 2];
+	char buffer[65536 * 4];
 	bool ret = true;
 
 	printf("Crash encountered, generating crash log...\n");

src/os/macosx/crashlog_osx.cpp

@@ -165,7 +165,7 @@ public:
 	/** Generate the crash log. */
 	bool MakeCrashLog()
 	{
-		char buffer[65536];
+		char buffer[65536 * 4];
 		bool ret = true;
 
 		printf("Crash encountered, generating crash log...\n");

src/os/windows/crashlog_win.cpp

@@ -63,7 +63,7 @@ public:
 
 
 	/** Buffer for the generated crash log */
-	char crashlog[65536];
+	char crashlog[65536 * 4];
 	/** Buffer for the filename of the crash log */
 	char crashlog_filename[MAX_PATH];
 	/** Buffer for the filename of the crash dump */