use eval consistently, fixes description quotes on rtsol and dhcp

fix inspired by and closes pr 4495
ok krw@

src/etc/netstart

@@ -1,6 +1,6 @@
 #!/bin/sh -
 #
-#	$OpenBSD: netstart,v 1.105 2005/05/22 08:56:08 todd Exp $
+#	$OpenBSD: netstart,v 1.106 2005/09/28 17:40:30 todd Exp $
 
 # Strip comments (and leading/trailing whitespace if IFS is set)
 # from a file and spew to stdout
@@ -81,14 +81,13 @@ ifstart() {
 			[ "$name" = "NONE" ] && name=
 			[ "$mask" = "NONE" ] && mask=
 			[ "$bcaddr" = "NONE" ] && bcaddr=
-			ifconfig $if $name $mask $bcaddr $ext1 $ext2 down
-			cmd="dhclient $if"
+			cmd="ifconfig $if $name $mask $bcaddr $ext1 $ext2 down"
+			cmd="$cmd;dhclient $if"
 			setgateway=N
 			;;
 		"rtsol")
-			ifconfig $if $name $mask $bcaddr $ext1 $ext2 up
 			rtsolif="$rtsolif $if"
-			cmd=
+			cmd="ifconfig $if $name $mask $bcaddr $ext1 $ext2 up"
 			;;
 		"up")
 			# The only one of these guaranteed to be set is $if.