Silence -Wstringop-overflow warning from lua codebase

It currently results in some false positives from gcc 10.

src/SConscript

@@ -107,7 +107,7 @@ env_lua = env.Clone(
     CPPPATH = ["$CPPPATH", Dir(".").srcnode()],
     CPPDEFINES = ["$CPPDEFINES", env["PLATFORM"] != "win32" and "LUA_USE_POSIX" or []])
 
-env_lua.AppendUnique(CCFLAGS = Split("-Wno-old-style-cast -Wno-useless-cast"))
+env_lua.AppendUnique(CCFLAGS = Split("-Wno-old-style-cast -Wno-useless-cast -Wno-stringop-overflow"))
 # Silence some Clang-specific warnings due to extra parentheses in if statements when comparing.
 if "clang" in env["CXX"]:
     env_lua.AppendUnique(CCFLAGS = Split("-Wno-parentheses-equality"))