[libvirt] [PATCHv2 00/10] Begin to replace scanf and atoi

[Matthias Bolte]

This set of patches is a first step towards removing the scanf and atoi
usage in libvirt. I began with the simple cases and post this now to get
some feedback before I start to convert the more difficult cases.

Changes in v2:
- don't test tmp for NULL
- note in commit message if parsing is stricter now
- don't leak in PRUnicharToInt (vbox)
- strip a trailing \n in openvzGetVPSUUID, as it was done before
- don't use strspn to skip whitespaces, virStrToLong* does this already
- fix virStrToLong* return value tests to check for < 0 instead of < 3 or != 1
- add STRSKIP to skip a given prefix of a string

Thanks to Eric Blake and Jim Meyering.

Matthias