archive-ar-file-header-re
archive-ar-file-header-re is a variable defined in `arc-mode.el'.
Its value is
"\\(.\\{16\\}\\)\\([ 0-9]\\{12\\}\\)\\([ 0-9]\\{6\\}\\)\\([ 0-9]\\{6\\}\\)\\([ 0-7]\\{8\\}\\)\\([ 0-9]\\{10\\}\\)`\n"
- This variable may be risky if used as a file-local variable.