grep: add --threads=<num> option and grep.threads configuration

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 391a0c3c857081e0509ea5a1b2ac085e79439d8f..ff2179901ebfc7d5abe7d61aabcc1f5981da4d7a 100644 (file)
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1447,6 +1447,10 @@ grep.extendedRegexp::
        option is ignored when the 'grep.patternType' option is set to a value
        other than 'default'.
 
+grep.threads::
+       Number of grep worker threads to use.
+       See `grep.threads` in linkgit:git-grep[1] for more information.
+
 gpg.program::
        Use this custom program instead of "gpg" found on $PATH when
        making or verifying a PGP signature. The program must support the