log: add exhaustive tests for pattern style options & config

diff --git a/Documentation/rev-list-options.txt b/Documentation/rev-list-options.txt
index a02f7324c01ee5811441d2a6dcb93aafd892298c..a46f70c2b16c2c03f47ccb3444cffb491b68ed83 100644 (file)
--- a/Documentation/rev-list-options.txt
+++ b/Documentation/rev-list-options.txt
@@ -92,8 +92,12 @@ endif::git-rev-list[]
        pattern as a regular expression).
 
 --perl-regexp::
-       Consider the limiting patterns to be Perl-compatible regular expressions.
-       Requires libpcre to be compiled in.
+       Consider the limiting patterns to be Perl-compatible regular
+       expressions.
++
+Support for these types of regular expressions is an optional
+compile-time dependency. If Git wasn't compiled with support for them
+providing this option will cause it to die.
 
 --remove-empty::
        Stop when a given path disappears from the tree.