st: use `void' to indicate an empty parameter list

diff --git a/st.c b/st.c
index 6ba467d7cc903d90f1aa1b5aa01da592ad1b30e6..62def59f17cbf1bfd841210453ba29e5578d5610 100644 (file)
--- a/st.c
+++ b/st.c
@@ -939,7 +939,7 @@ ttyresize(int tw, int th)
 }
 
 void
-ttyhangup()
+ttyhangup(void)
 {
        /* Send SIGHUP to shell */
        kill(pid, SIGHUP);