Eli Schwartz authored Oct 27, 2019 and Allan McRae committed Oct 30, 2019

zipman:

read -r protects against those evil manpages whose filenames contain
backslash escapes, (muahahaha?)

IFS= read protects against filenames with:

- leading whitespace (but no one is actually stupid enough to configure
  their MAN_DIRS=() in makepkg.conf with such silly directories, *right*?)

- trailing whitespace (but likewise, no one should be stupid enough to
  write an uncompressed manpage for section '1 ' or something)

Also fix several other cases where we read filenames without protecting
against surrounding whitespace, or without using null-delimited
filenames when we could trivially do so.

Signed-off-by: Eli Schwartz <eschwartz@archlinux.org>
Signed-off-by: Allan McRae <allan@archlinux.org>