line-range-format.txt: document -L/RE/ relative search

Option -L/RE/ of blame/log now searches relative to the previous -L
range, if any. Document this.

Signed-off-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/line-range-format.txt b/Documentation/line-range-format.txt
index a1b2f4e0893cdcc34b6bd58a6474582b8afc96e3..42d74f75ad2a6a55a366595b5be2ecceb986c028 100644 (file)
--- a/Documentation/line-range-format.txt
+++ b/Documentation/line-range-format.txt
@@ -9,7 +9,9 @@ absolute line number (lines count from 1).
 - /regex/
 +
 This form will use the first line matching the given
-POSIX regex.  If <end> is a regex, it will search
+POSIX regex. If <start> is a regex, it will search from the end of
+the previous `-L` range, if any, otherwise from the start of file.
+If <end> is a regex, it will search
 starting at the line given by <start>.
 +