Let builds work with any shell (set SHELL= so su works)

tools/chrootmake.sh

@@ -1,6 +1,7 @@
 #!/bin/sh
 set -e
 export PATH=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin
+export SHELL=/bin/sh
 cd /usr/src || exit 1
 make etcfiles
 su bin -c 'make world install' || exit 1

tools/release.sh

@@ -3,6 +3,7 @@
 PACKAGEDIR=/usr/bigports/Packages
 PACKAGESOURCEDIR=/usr/bigports/Sources
 secs=`expr 32 '*' 64`
+export SHELL=/bin/sh
 
 make_hdimage()
 {
@@ -130,7 +131,7 @@ fi
 IMGBZ=${IMG}.bz2
 echo "Making $IMGBZ"
 
-USRMB=200
+USRMB=350
 
 USRBLOCKS="`expr $USRMB \* 1024 \* 1024 / $BS`"
 USRSECTS="`expr $USRMB \* 1024 \* 2`"