Fix incompatibility with PGI 16.10

* src/tar.c (options): Fix incompatibility with the C standard,
which says that arguments to macro calls cannot contain # directives.

src/tar.c

@@ -548,11 +548,11 @@ static struct argp_option options[] = {
    N_("cancel the effect of --delay-directory-restore option"), GRID+1 },
   {"sort", SORT_OPTION, N_("ORDER"), 0,
 #if D_INO_IN_DIRENT
-   N_("directory sorting order: none (default), name or inode"
+   N_("directory sorting order: none (default), name or inode")
 #else
-   N_("directory sorting order: none (default) or name"
+   N_("directory sorting order: none (default) or name")
 #endif
-     ), GRID+1 },
+     , GRID+1 },
 #undef GRID
 
 #define GRID 55
@@ -1758,7 +1758,7 @@ parse_opt (int key, char *arg, struct argp_state *state)
     case GROUP_MAP_OPTION:
       group_map_read (arg);
       break;
-      
+
     case MODE_OPTION:
       mode_option = mode_compile (arg);
       if (!mode_option)
@@ -1829,7 +1829,7 @@ parse_opt (int key, char *arg, struct argp_state *state)
     case OWNER_MAP_OPTION:
       owner_map_read (arg);
       break;
-      
+
     case QUOTE_CHARS_OPTION:
       for (;*arg; arg++)
 	set_char_quoting (NULL, *arg, 1);
@@ -2123,7 +2123,7 @@ find_argp_option (struct argp *ap, int key)
 {
   struct argp_option const *p = NULL;
   struct argp_child const *child;
-  
+
   p = find_argp_option_key (ap->options, key);
   if (!p && ap->children)
     {
@@ -2136,7 +2136,7 @@ find_argp_option (struct argp *ap, int key)
     }
   return p;
 }
-  
+
 static const char *tar_authors[] = {
   "John Gilmore",
   "Jay Fenlason",