Update doorscan.js - fix "TypeError: argv[i].toLowerCase is not a function"...

Update doorscan.js - fix "TypeError: argv[i].toLowerCase is not a function" when being called from webv4
14 jobs for mlong/doorscanfix in 17 minutes (queued for 9 seconds)
Status Job ID Name Coverage
  Build
passed #9811
FreeBSD
jsdoor-freebsd

00:05:20

passed #9812
Linux
jsdoor-linux

00:06:06

passed #9814
FreeBSD
jsdoor-windows

00:03:48

passed #9806
FreeBSD
sbbs-freebsd

00:06:31

passed #9801
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sbbs-linux

00:08:16

passed #9804
Windows
sbbs-windows

00:05:11

passed #9813
FreeBSD
sexpots-freebsd

00:00:09

passed #9802
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sexpots-linux

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passed #9805
Windows
sexpots-windows

00:00:22

passed #9809
FreeBSD
syncdraw-freebsd

00:00:22

passed #9810
Linux
syncdraw-linux

00:00:30

passed #9807
FreeBSD
syncterm-freebsd

00:01:13

passed #9803
Linux
syncterm-linux

00:01:55

passed #9808
FreeBSD
syncterm-windows

00:02:26