Consistent use of target language version of options

If a version number is supported by the target language prefer to show it in the -help.
For example, -perl5 instead of -perl.

Source/Modules/perl5.cxx

@@ -16,7 +16,7 @@
 #include <ctype.h>
 
 static const char *usage = "\
-Perl5 Options (available with -perl5)\n\
+Perl 5 Options (available with -perl5)\n\
      -compat         - Compatibility mode\n\
      -const          - Wrap constants as constants and not variables (implies -proxy)\n\
      -nopm           - Do not generate the .pm file\n\

Source/Modules/php.cxx

@@ -43,7 +43,7 @@
 #include <errno.h>
 
 static const char *usage = "\
-PHP Options (available with -php7)\n\
+PHP 7 Options (available with -php7)\n\
      -noproxy         - Don't generate proxy classes.\n\
      -prefix <prefix> - Prepend <prefix> to all class names in PHP wrappers\n\
 \n";

Source/Modules/swigmain.cxx

@@ -66,20 +66,20 @@ static TargetLanguageModule modules[] = {
   {"-mzscheme", swig_mzscheme, "Mzscheme", Supported},
   {"-ocaml", swig_ocaml, "Ocaml", Supported},
   {"-octave", swig_octave, "Octave", Supported},
-  {"-perl", swig_perl5, "Perl", Supported},
-  {"-perl5", swig_perl5, NULL, Supported},
+  {"-perl", swig_perl5, NULL, Supported},
+  {"-perl5", swig_perl5, "Perl 5", Supported},
   {"-php", swig_php, NULL, Supported},
-  {"-php4", NULL, "PHP4", Disabled},
-  {"-php5", NULL, "PHP5", Disabled},
-  {"-php7", swig_php, "PHP7", Supported},
+  {"-php4", NULL, "PHP 4", Disabled},
+  {"-php5", NULL, "PHP 5", Disabled},
+  {"-php7", swig_php, "PHP 7", Supported},
   {"-pike", NULL, "Pike", Disabled},
   {"-python", swig_python, "Python", Supported},
   {"-r", swig_r, "R (aka GNU S)", Supported},
   {"-ruby", swig_ruby, "Ruby", Supported},
   {"-scilab", swig_scilab, "Scilab", Supported},
   {"-sexp", NULL, "Lisp S-Expressions", Disabled},
-  {"-tcl", swig_tcl, "Tcl", Supported},
-  {"-tcl8", swig_tcl, NULL, Supported},
+  {"-tcl", swig_tcl, NULL, Supported},
+  {"-tcl8", swig_tcl, "Tcl 8", Supported},
   {"-uffi", NULL, "Common Lisp / UFFI", Disabled},
   {"-xml", swig_xml, "XML", Supported},
   {NULL, NULL, NULL, Disabled}

Source/Modules/tcl8.cxx

@@ -15,7 +15,7 @@
 #include "cparse.h"
 
 static const char *usage = "\
-Tcl 8 Options (available with -tcl)\n\
+Tcl 8 Options (available with -tcl8)\n\
      -itcl           - Enable ITcl support\n\
      -nosafe         - Leave out SafeInit module function.\n\
      -prefix <name>  - Set a prefix <name> to be prepended to all names\n\