dup() -> dup2()

gcc would warn about an unused result. We know it is 0 and dup()
can't fail in these circumstances, as we closed fd0 previously.
Using dup2() to do the same saves one line and shuts gcc up, bringing
us a clean build back.

1 files changed, 1 insertions, 2 deletions

diff --git a/st.c b/st.c
index bd8b815..bcf74b3 100644
--- a/st.c
+++ b/st.c
@@ -1430,8 +1430,7 @@ ttynew(void)
         if (opt_line) {
                 if ((cmdfd = open(opt_line, O_RDWR)) < 0)
                         die("open line failed: %s\n", strerror(errno));
-                close(0);
-                dup(cmdfd);
+                dup2(cmdfd, 0);
                 stty();
                 return;
         }