lineNumber has casing that is inconsistent with surrounding options,
like color.grep.matchContext, and color.grep.matchSelected. Re-case this
documentation in order to be consistent with the text around it, and to
ensure that new entries are consistent, too.
Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
filename prefix (when not using `-h`)
`function`;;
function name lines (when using `-p`)
-`linenumber`;;
+`lineNumber`;;
line number prefix (when using `-n`)
`match`;;
matching text (same as setting `matchContext` and `matchSelected`)