MFS 1.536.2.52 (partial) and 1.536.2.70: kgzip loader if i386 (only).

5.0-CURRENT-20020121-JPSNAP was failed to build since kern.flp has no
space.  There is already a hack to kgzip loader, and it makes:

-r-xr-xr-x  1 root  wheel  163840 Jan 21 07:40 loader*
-r-xr-xr-x  1 root  wheel   90121 Jan 21 08:06 loader.kgz*

73719 bytes of free spaces to us.

release/Makefile

@@ -982,7 +982,11 @@ doMFSKERN:
 	mv ${RD}/kernels/BOOTMFS ${RD}/image.${FSIMAGE}/kernel
 	@echo "Setting up /boot directory for ${FSIMAGE} floppy"
 	@mkdir -p ${RD}/image.${FSIMAGE}/boot
+.if ${MACHINE} == "i386"
+	@kgzip -vo ${RD}/image.${FSIMAGE}/boot/loader /boot/loader
+.else
 	@cp /boot/loader ${RD}/image.${FSIMAGE}/boot
+.endif
 	@[ -r ${RD}/kernels/BOOTMFS.${FSIMAGE}.hints ] && \
 	  sed -e '/^hint/s/^/set /' -e '/^#/d' \
 	    ${RD}/kernels/BOOTMFS.${FSIMAGE}.hints > \