patch 8.1.2160: cannot build with +syntax but without +terminal

Problem:    Cannot build with +syntax but without +terminal.
Solution:   Add #ifdef.
diff --git a/src/drawline.c b/src/drawline.c
index d702e9e..1415a31 100644
--- a/src/drawline.c
+++ b/src/drawline.c
@@ -1517,8 +1517,12 @@
 		else
 #endif
 #ifdef FEAT_SYN_HL
-		if (has_syntax || get_term_attr)
-		    char_attr = syntax_attr;
+		    if (has_syntax
+# ifdef FEAT_TERMINAL
+			    || get_term_attr
+# endif
+		       )
+			char_attr = syntax_attr;
 		else
 #endif
 		    char_attr = 0;
diff --git a/src/version.c b/src/version.c
index 91cffb3..9135fe7 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    2160,
+/**/
     2159,
 /**/
     2158,