Improved _sprintf

Rev: lib/modules/Protocols.pmod/HTTP.pmod/Query.pike:1.47
Rev: lib/modules/Protocols.pmod/HTTP.pmod/Server.pmod/Request.pike:1.13
Rev: lib/modules/Protocols.pmod/IRC.pmod/Client.pike:1.8
Rev: lib/modules/Protocols.pmod/LysKOM.pmod/ProtocolTypes.pmod:1.9
Rev: lib/modules/Protocols.pmod/LysKOM.pmod/Session.pike:1.32
Rev: lib/modules/Protocols.pmod/XMLRPC.pmod/module.pmod:1.20
Rev: lib/modules/SSL.pmod/sslfile.pike:1.50
Rev: lib/modules/Sql.pmod/Sql.pike:1.62
Rev: lib/modules/Sql.pmod/sql_result.pike:1.11
Rev: lib/modules/Standards.pmod/CIFF.pmod/File.pike:1.3
Rev: lib/modules/Standards.pmod/RDF.pike:1.8
Rev: lib/modules/Stdio.pmod/FakeFile.pike:1.4
Rev: lib/modules/Stdio.pmod/module.pmod:1.161
Rev: lib/modules/Thread.pmod:1.35