install_update_dovecot-2.4.sh: some minor changes.

install_update_dovecot-2.4.sh

@@ -2790,11 +2790,12 @@ fi
 ## - Compile dovecot
 ## -
 echononl "   Compile Dovecot Sources.."
-make > ${_log_dir}/dovecot-${_version}-make.log  2>&1 || clean_up 1
+make > ${_log_dir}/dovecot-${_version}-make.log  2>&1
 if [ "$?" = 0 ]; then
    echo -e "$rc_done"
 else
    echo -e "$rc_failed"
+   echo -e "\n   See file \033[1m${_log_dir}/dovecot-${_version}-make.log\033[m for more details."
    fatal Compiling dovecot failed
 fi