yaz_is_abspath: drive letter test NOT using isalpha
authorAdam Dickmeiss <adam@indexdata.dk>
Mon, 25 Jul 2011 10:55:02 +0000 (12:55 +0200)
committerAdam Dickmeiss <adam@indexdata.dk>
Mon, 25 Jul 2011 10:55:02 +0000 (12:55 +0200)
isalpha is problematic for signed chars and we assume drive letters are
[a-zA-Z] only; also isalpha depends locale.


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