Remove trailing spaces (#665)

* Remove trailing spaces

* PR-665 -  Remove trailing spaces

- Updated not stable test t/pt-online-schema-change/preserve_triggers.t
- Updated utilities in bin directory

* PR-665 -  Remove trailing spaces

- Fixed typos

* PR-665 -  Remove trailing spaces

- Fixed typos

---------

Co-authored-by: Sveta Smirnova <sveta.smirnova@percona.com>

lib/TcpdumpParser.pm

@@ -92,7 +92,7 @@ sub parse_event {
       $raw_packet = "20$raw_packet" unless $raw_packet =~ m/\A20/;
 
       # Remove special headers (e.g. vlan) before the IPv4 header.
-      # The vast majority of IPv4 headers begin with 4508 (or 4500).  
+      # The vast majority of IPv4 headers begin with 4508 (or 4500).
       # http://code.google.com/p/maatkit/issues/detail?id=906
       $raw_packet =~ s/0x0000:.+?(450.) /0x0000:  $1 /;
 
@@ -121,9 +121,9 @@ sub _parse_packet {
    # Change ports from service name to number.
    $src_port = $self->port_number($src_port);
    $dst_port = $self->port_number($dst_port);
-   
+
    my $hex = qr/[0-9a-f]/;
-   (my $data = join('', $packet =~ m/\s+0x$hex+:\s((?:\s$hex{2,4})+)/go)) =~ s/\s+//g; 
+   (my $data = join('', $packet =~ m/\s+0x$hex+:\s((?:\s$hex{2,4})+)/go)) =~ s/\s+//g;
 
    # Find length information in the IPv4 header.  Typically 5 32-bit
    # words.  See http://en.wikipedia.org/wiki/IPv4#Header