better document the ngetdelim() tweaks

git-svn-id: svn://svn.savannah.gnu.org/nano/trunk/nano@1902 35c25a1d-7b9e-4130-9fde-d3aeb78583b8

ChangeLog

@@ -236,7 +236,8 @@ CVS code -
   ngetdelim(), ngetline()
 	- New functions equivalent to getdelim() and getline(), which
 	  are both GNU extensions. (DLR, adapted from GNU mailutils
-	  0.5 with minor changes to better integrate with nano)
+	  0.5 with minor changes to better integrate with nano and
+	  increase efficiency)
 - winio.c:
   get_kbinput()
 	- Since the only valid values for escapes are 0, 1, and 2,