terminal-util: fix underlying with SYSTEMD_COLORS=no

Fixes #31857.

diff --git a/src/basic/terminal-util.h b/src/basic/terminal-util.h
index 2aed260526a66fed4ec6b4e00e9ee2245cf348e1..0f3175ef43f1282b0fa4a610f813758037b762cd 100644 (file)
--- a/src/basic/terminal-util.h
+++ b/src/basic/terminal-util.h
@@ -197,7 +197,7 @@ static inline bool colors_enabled(void) {
         }
 
 static inline const char *ansi_underline(void) {
-        return underline_enabled() ? ANSI_UNDERLINE : ANSI_NORMAL;
+        return underline_enabled() ? ANSI_UNDERLINE : "";
 }
 
 static inline const char *ansi_add_underline(void) {