A number of install scripts were testing for install-info to no effect,
then calling it regardless. For minimal installs, this makes pacman fail
on them visibly.
This fix replicates what other MSYS2 packages, e.g. autoconf, do.
Also none of these packages actually depend on GNU info.
* upgrade some broken packages
* correct some broken urls/checksums
* use secure urls where possible
* use stable url for ncurses
* some whitespace fixes
Remaining md5sums either didn't download or
didn't pass checksum tests.
