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/term.c b/src/term.c
index f65a15b..75c9fbf 100644
--- a/src/term.c
+++ b/src/term.c
@@ -1565,9 +1565,9 @@
 	    /* get output strings */
 		for (i = 0; string_names[i].name != NULL; ++i)
 		{
-		    if (term_str(string_names[i].dest) == NULL
-			    || term_str(string_names[i].dest) == empty_option)
-			term_str(string_names[i].dest) =
+		    if (TERM_STR(string_names[i].dest) == NULL
+			    || TERM_STR(string_names[i].dest) == empty_option)
+			TERM_STR(string_names[i].dest) =
 					   TGETSTR(string_names[i].name, &tp);
 		}
 
@@ -1619,8 +1619,8 @@
 		/*
 		 * Get number of colors (if not done already).
 		 */
-		if (term_str(KS_CCO) == NULL
-			|| term_str(KS_CCO) == empty_option)
+		if (TERM_STR(KS_CCO) == NULL
+			|| TERM_STR(KS_CCO) == empty_option)
 		    set_color_count(tgetnum("Co"));
 
 # ifndef hpux