setup.sh: Don't call hostname multiple times.

diff --git a/setup.sh b/setup.sh
index 857a1cef97a34f221043376f35eb9c540db6ab08..acf60e860b8f8a45ed129547ee792de5e1694e08 100755 (executable)
--- a/setup.sh
+++ b/setup.sh
@@ -5,6 +5,8 @@
 
 . ../lib.sh
 
+hostname=`hostname`
+
 # Generate ~/.less with lesskey.
 lesskey lesskey
 chmod 0600 ~/.less
@@ -12,14 +14,14 @@ chmod 0600 ~/.less
 # As screen-256color is not widely supported use it only on machines known to
 # work.
 generate cat screenrc .in
-if [ `hostname` != asp -a `hostname` != systemofadown ]; then
+if [ $hostname != asp -a $hostname != systemofadown ]; then
     sed 's/Enable 256 color/Disable 256 color/;
          s/screen-256color/screen/' screenrc > screenrc.tmp
     mv screenrc.tmp screenrc
 fi
 # I use some features of screen which are only in Git. Drop them on machines
 # which have older versions. They are marked as "(GIT)".
-if [ `hostname` != asp ]; then
+if [ $hostname != asp ]; then
     grep -v '(GIT)' screenrc > screenrc.tmp
     mv screenrc.tmp screenrc
 fi