diff --git a/doc/tools/find-its b/doc/tools/find-its
index 2276183628..7f8996b32b 100755
--- a/doc/tools/find-its
+++ b/doc/tools/find-its
@@ -1,48 +1,17 @@
-#!/usr/bin/perl -w
-use strict;
-use File::Find ();
-
+#!/bin/sh
 # -----------------------------------------------------------------------------
-#
 # Script
 #     find-its
 #
 # Description
-#     Search for *.[CH] files with "it's"
+#     Search for files with "it's"
 #     This contraction (== "it is") looks too much like "its" (possesive)
 #     and confuses non-native (and some native) English speakers.
 #
-#     - print filename and lineNumber
-#
 # -----------------------------------------------------------------------------
+set -x
+cd $WM_PROJECT_DIR || exit 1
 
-my $re_filespec = qr{^.+\.[CH]$};
-
-# for the convenience of &wanted calls, including -eval statements:
-## use vars qw( *name *dir *prune );
-## *name   = *File::Find::name;
-## *dir    = *File::Find::dir;
-## *prune  = *File::Find::prune;
-
-sub wanted {
-    unless ( lstat($_) and -f _ and -r _ and not -l _ and /$re_filespec/ ) {
-        return;
-    }
-
-    local @ARGV = $_;
-    while (<>) {
-        if (m{it\'s}) {
-            print "$File::Find::name  line=$.\n";
-        }
-    }
-
-    close ARGV;
-}
-
-## Traverse desired filesystems
-for my $dir (@ARGV) {
-    no warnings 'File::Find';
-    warn "(**) checking '$dir' ...\n";
-    File::Find::find( { wanted => \&wanted }, $dir );
-}
+git grep -e "it's"
 
+#------------------------------------------------------------------ end-of-file
diff --git a/src/thermophysicalModels/pdfs/general/general.C b/src/thermophysicalModels/pdfs/general/general.C
index e29bf1f4a4..da674ee2ad 100644
--- a/src/thermophysicalModels/pdfs/general/general.C
+++ b/src/thermophysicalModels/pdfs/general/general.C
@@ -99,7 +99,7 @@ Foam::scalar Foam::pdfs::general::sample() const
     scalar alpha = y + xy_[n-1][0]*(0.5*k*xy_[n-1][0] + d) - integral_[n-1];
     scalar x = 0.0;
 
-    // if k is small it's a linear equation, otherwise it's of second order
+    // if k is small it is a linear equation, otherwise it is of second order
     if (mag(k) > SMALL)
     {
         scalar p = 2.0*d/k;