fix common typo in progressMonitor beginTask()

[GerdP]

Due to copy+paste we have quite a lot of sources with this error pattern:
Instead of

  progressMonitor.beginTask(tr("Contacting Server...", 10));

it should be

  progressMonitor.beginTask(tr("Contacting Server..."), 10);

The effect is that many progress monitors show no progress because the default tick number is 10000.
I found this in the o5m plugin and in some core sources.

Other plugins matching the search pattern "beginTask\(tr.*[0..9]+\)\)" are:

plugins\cadastre-fr\src\org\openstreetmap\josm\plugins\fr\cadastre\download\CadastreServerReader.java
plugins\poly\src\poly\DownloadPolyTask.java
plugins\imagery-xml-bounds\src\org\openstreetmap\josm\plugins\imageryxmlbounds\io\JosmServerLocationReader.java
plugins\pbf\src\org\openstreetmap\josm\plugins\pbf\io\PbfServerReader.java

There may be more where the tick count is not given as a numerical constant.