Reinstate FILE-MATCH, accidentally left unported from 0.5.1.

Replace mention of SRFI 13 (not there yet) by STRING-LIB (gone soon).

scsh/scsh-interfaces.scm

@@ -290,7 +290,7 @@
 	  directory-files
 	  glob
 	  glob-quote
-;	  file-match
+	  file-match
 
 	  create-temp-file
 	  temp-file-iterate

scsh/scsh-package.scm

@@ -229,7 +229,7 @@
 	 filesys
 	 fileinfo
 	 glob
-;	 filemtch
+	 filemtch
 	 time			; New in release 0.2.
 	 (machine time_dep)
 	 network		; New in release 0.3.
@@ -338,7 +338,7 @@
   (files fr)
   ;; Handle a little bit of backwards compatibility.
   (begin (define join-strings (deprecated-proc string-join 'join-strings
-					       "Use SRFI-13 STRING-JOIN.")))
+					       "Use STRING-LIB STRING-JOIN.")))
   )