Currently even if the page does not exist at all this script just says
"there's no content" which is partially true. If the page does exist but with
no content and/or blank the same answer is also given, which is OK in that case
but less so in the former case.
Also handle special pages instead of throwing exception.
Change-Id: Ia15b336d989d3605ead1891e3396380e8e6d4347
Benefit of keeping the parameter optional:
- In maintenance scripts that really only have one parameter, it's a
little more convenient to be able to ask for *the* parameter via an
empty getArg().
Disadvantages:
- It's unclear what getArg() means when there is no indication *which*
argument the code asks for. This might as well return the last
argument, or an array of all arguments.
- In scripts with two or more arguments, it's confusing to see
getArg( 1 ) next to an empty getArg().
- The methods are more complex and a bit more complicated to use with
the extra feature of this parameter being optional. Users need to
look up what the default is to be able to use it safely.
Change-Id: I22a43bfdfc0f0c9ffdb468c13aba73b888d1f15e
Function Content::getNativeData() was deprecated. Replace with
calls to new function TextContent::getText() in most places.
Bug: T155582
Change-Id: I2bd508c72aac4faf474ba45ab1f92e2e8d2eb9be
Deprecate the second argument to Maintenance::error() in favor of a new
Maintenance::fatalError() method. This is intended to make it easier to
review flow control in maintenance scripts.
Change-Id: I75699008638f7e99b11210c7bb9e2e131fca7c9e
