bugfix: the multiplexer increments optc and then the command the multiplexer runs increments it further, resulting in a wrong count. Fix: zero it.
New toy fsfreeze, from Isaac Dunham, plus minor cleanups.
In ifconfig.c, there is a glitch in function get_addrinfo() when computing the prefix length.
Decided not to go with the sflate implementation of deflate/inflate. The decompression side's already reimplemented in compress, and I'm working on compression side.
Here is a basic implementation of fold[0]. It does not support multibyte characters, though that would probably just require more switch cases.
openvt tries opening several devices to get an fd that points to the current console, without a need for read or write permissions. O_RDWR implies that both O_RDONLY and O_WRONLY would work, so skip it. Reindent.
Revert "Decided not to go with the sflate implementation of deflate/inflate. The decompression side's already reimplemented in compress, and I'm working on compression side."

This reverts commit 7183a637432c9f0957e4e0e68b71e61a67fa89d6.
Merge branch 'mmerge' into build