patch 8.0.0466: still macros that should be all-caps

Problem:    There are still a few macros that should be all-caps.
Solution:   Make a few more macros all-caps.
diff --git a/src/ex_getln.c b/src/ex_getln.c
index 2dd8aa1..e96f5b8 100644
--- a/src/ex_getln.c
+++ b/src/ex_getln.c
@@ -4178,14 +4178,14 @@
 	    lines = (num_files + columns - 1) / columns;
 	}
 
-	attr = hl_attr(HLF_D);	/* find out highlighting for directories */
+	attr = HL_ATTR(HLF_D);	/* find out highlighting for directories */
 
 	if (xp->xp_context == EXPAND_TAGS_LISTFILES)
 	{
-	    MSG_PUTS_ATTR(_("tagname"), hl_attr(HLF_T));
+	    MSG_PUTS_ATTR(_("tagname"), HL_ATTR(HLF_T));
 	    msg_clr_eos();
 	    msg_advance(maxlen - 3);
-	    MSG_PUTS_ATTR(_(" kind file\n"), hl_attr(HLF_T));
+	    MSG_PUTS_ATTR(_(" kind file\n"), HL_ATTR(HLF_T));
 	}
 
 	/* list the files line by line */
@@ -4196,12 +4196,12 @@
 	    {
 		if (xp->xp_context == EXPAND_TAGS_LISTFILES)
 		{
-		    msg_outtrans_attr(files_found[k], hl_attr(HLF_D));
+		    msg_outtrans_attr(files_found[k], HL_ATTR(HLF_D));
 		    p = files_found[k] + STRLEN(files_found[k]) + 1;
 		    msg_advance(maxlen + 1);
 		    msg_puts(p);
 		    msg_advance(maxlen + 3);
-		    msg_puts_long_attr(p + 2, hl_attr(HLF_D));
+		    msg_puts_long_attr(p + 2, HL_ATTR(HLF_D));
 		    break;
 		}
 		for (j = maxlen - lastlen; --j >= 0; )