Update gcc for file-read

Co-authored-by: Andrea Cardaci <cyrus.and@gmail.com>

_gtfobins/gcc.md

@@ -4,6 +4,10 @@ functions:
     - code: |
         LFILE=file_to_read
         gcc -x c -E "$LFILE"
+    - description: The file is read and parsed as a list of files (one per line), the content is disaplyed as error messages, thus this might not be suitable to read arbitrary data.
+      code: |
+        LFILE=file_to_read
+        gcc @"$LFILE"
   file-write:  # XXX this should be file-delete
     - code: |
         LFILE=file_to_delete