Don't use extended Regexp Syntax

It's not POSIX (BSD systems have -E instead) and we don't actually need it. Closes #1922

Author: badboy

utils/install_server.sh

@@ -168,13 +168,13 @@ fi
 echo "## Generated by install_server.sh ##" > $TMP_FILE
 
 read -r SED_EXPR <<-EOF
-s#^port [0-9]{4}\$#port ${REDIS_PORT}#; \
-s#^logfile .+\$#logfile ${REDIS_LOG_FILE}#; \
-s#^dir .+\$#dir ${REDIS_DATA_DIR}#; \
-s#^pidfile .+\$#pidfile ${PIDFILE}#; \
-s#^daemonize no\$#daemonize yes#;
+s#^port .\+#port ${REDIS_PORT}#; \
+s#^logfile .\+#logfile ${REDIS_LOG_FILE}#; \
+s#^dir .\+#dir ${REDIS_DATA_DIR}#; \
+s#^pidfile .\+#pidfile ${PIDFILE}#; \
+s#^daemonize no#daemonize yes#;
 EOF
-sed -r "$SED_EXPR" $DEFAULT_CONFIG  >> $TMP_FILE
+sed "$SED_EXPR" $DEFAULT_CONFIG >> $TMP_FILE
 
 #cat $TPL_FILE | while read line; do eval "echo \"$line\"" >> $TMP_FILE; done
 cp $TMP_FILE $REDIS_CONFIG_FILE || die "Could not write redis config file $REDIS_CONFIG_FILE"