diff-context-mid-hunk-header-re

diff-context-mid-hunk-header-re is a variable defined in `diff-mode.el'.
Its value is

"--- \\([0-9]+\\)\\(?:,\\([0-9]+\\)\\)? ----$"

• This variable may be risky if used as a file-local variable.

Documentation:
Not documented as a variable.