* Subtitle::Utils : minor optimizations

lib/Subtitle/Utils.pm

@@ -16,11 +16,11 @@ our %EXPORT_TAGS = (
   timing => [qw(make_timing parse_timing)],
 );
 
-## string sunctions
+## string functions
 
 sub chomp_all {
-  return unless @_;
-  return $_ =~ s/[\r\n]+$//o for @_;
+  return unless $_[0];
+  $_[0] =~ s/[\r\n]+$//o;
 }
 
 sub strip_bom {
@@ -29,8 +29,8 @@ sub strip_bom {
 }
 
 sub trim {
-  return unless @_;
-  $_ =~ s/(^\s+|\s+$)//go for @_;
+  return unless $_[0];
+  $_[0] =~ s/(^\s+|\s+$)//go;
 }
 
 ## timing functions
@@ -101,9 +101,9 @@ Subtitle::Utils -- usefull generic routines
 =head2 C<chomp_all>
 
   chomp($line);
-  chomp($line1, $line2);
 
 In-place strips newlines (CR/LF) from line.
+Differs from standart chomp() than strips '\r', '\n' and it's combinaion, disregarding $/
 
 =head2 C<strip_bom>