Signed-off-by: Ramkumar Ramachandra <artag...@gmail.com>
---
 contrib/contacts/git-contacts     |  4 ++++
 contrib/contacts/git-contacts.txt | 16 ++++++++++++----
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/contrib/contacts/git-contacts b/contrib/contacts/git-contacts
index dbe2abf..5dde920 100755
--- a/contrib/contacts/git-contacts
+++ b/contrib/contacts/git-contacts
@@ -8,6 +8,7 @@
 use strict;
 use warnings;
 use IPC::Open2;
+use Getopt::Long qw(:config gnu_getopt no_ignore_case auto_abbrev);
 
 my $since = '5-years-ago';
 my $min_percent = 10;
@@ -158,6 +159,9 @@ sub mailmap_contacts {
        return \%mapped;
 }
 
+my $rv = GetOptions('since=s' => \$since, 'min-percent=i' => \$min_percent);
+exit 1 if (!$rv);
+
 if (!@ARGV) {
        die "No input revisions or patch files\n";
 }
diff --git a/contrib/contacts/git-contacts.txt 
b/contrib/contacts/git-contacts.txt
index dd914d1..a50c97f 100644
--- a/contrib/contacts/git-contacts.txt
+++ b/contrib/contacts/git-contacts.txt
@@ -31,6 +31,16 @@ discuss proposed changes, or for finding the list of 
recipients to Cc: when
 submitting a patch series via `git send-email`. For the latter case, `git
 contacts` can be used as the argument to `git send-email`'s `--cc-cmd` option.
 
+OPTIONS
+-------
+
+--min-percent::
+       The minimum threshold of blame percentage that a person must
+       exceed in order to be reported.
+
+--since::
+        Depth of history to dig.
+
 
 DISCUSSION
 ----------
@@ -83,10 +93,8 @@ $ git send-email --cc-cmd='git contacts' feature/*.patch
 LIMITATIONS
 -----------
 
-Several conditions controlling a person's significance are currently
-hard-coded, such as minimum participation level (10%), blame date-limiting (5
-years), and `-C` level for detecting moved and copied lines (a single `-C`). In
-the future, these conditions may become configurable.
+The `-C` level for detecting moved and copied lines (a single `-C`) is
+hard-coded. In the future, this may become configurable.
 
 
 GIT
-- 
2.2.1

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