FMSLogo Code

Minor wording improvements to the paragaphs about saving the workspace editor.
Notably, replaced "enivronment" with "workspace" to standardize on the term in the glossary.

Fix typo: "because the exceeded" -> "because they exceed"

Document that WINHELP is deprecated.

Fix a misspelling of "specifying"

Fix typo: "if" -> "of"

Update the baseline test log with recent updates made in 7.2.0.

Fix a problem where if a test logs a string with a NUL character, the resulting
test log contains the NUL and looks like a binary file to WinMerge.exe, which will
refuse to diff it against the baseline test log. The fix is to log NUL characters
as "\0".

Update the final test in SETLABELFONTTEST to follow current conventions

Harden FILLTEST against the pen being up when the test starts.
This now happens during the full test pass because the previous test, CURVESTEST, leaves the pen up due to a bug in the interaction between ELLIPSEARC2 and FENCE.

Fix a bug in CURRENTWORKINGDIRECTORY that broke under cygwin's bash

This revision changes the implementation of CURRENTWORKINGDIRECTORY to use DLLCALL for ::GetCurrentDirectoryA instead of invoking perl.exe as an external process. The problem with perl is that I had installed cygwin's perl and FMSLogo was finding it. This returned a cygwin path ("/cygdrive/c instead" of "c:\"), which caused the test code to fail to CHDIR back to that directory. As a result, running DIRECTORYTEST moved out of the "test" directory, which caused strange, difficult-to-understand downstream failures.

Since it's now possible to use DLLCALL to call get the working directory, it makes sense to do so.