refactor: rename libgcc_s.so.1 backup file

The code has been refactored to improve clarity and readability. The variable `libgccc_so` has been renamed to `libgccc_so.bak` for better understanding of its purpose. This change ensures that the backup file for libgcc_s.so.1 is correctly named and easily identifiable.

lgsm/modules/fix_csgo.sh

@@ -37,6 +37,6 @@ libgccc_so="${serverfiles}/bin/libgcc_s.so.1"
 if [ -f "${libgccc_so}" ]; then
 	fixname="libgcc_s.so.1 move away"
 	fn_fix_msg_start
-	mv -v "${libgccc_so}" "${libgccc_so}.bck"
+	mv "${libgccc_so}" "${libgccc_so}.bak"
 	fn_fix_msg_end
 fi