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Lukas Fleischer authored
In commit 0722f46c (Simplify valid_user() and valid_username(), 2014-02-06), the conversion to lower case letters was unintentionally removed and in consequence, names with upper case letters have been rejected since then. Instead of reintroducing the conversion, add the "i" modifier to the regular expression validating the name to do case-insensitive pattern matching. Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>
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