Cleanup: remove shell redirection inside string replace

Several test makefiles contain the construct
  `$(@:%.ok=%/log 2>&1)`

Quoting Johathan Gibbons from https://github.com/openjdk/jtreg/pull/181:

> The code might work "by accident", but is for sure not how it is meant to be.
>
> There are two parts to this expression:
>
> 1. $(@:%.ok=%/log). This is an expression to generate a string from $@ by replacing the trailing .ok with /log -- in other words, based on the name of the target $@ generate a related name for the log file
> 2. 2>&1. This is plain old shell redirection, and should be directly on the grep command line, and not hidden in. the $(@:...) expression.

The files in which the expression is found:

test/exclude/ExcludeTest.gmk
test/ignoresymbolfile/IgnoreSymbolFileTest.gmk
test/junit/JUnitLibTest.gmk
test/libBuildArgs/LibBuildArgsTest.gmk
test/libdirs/LibDirsTest.gmk
test/match/MatchTest.gmk
test/testng/TestNGLibTest.gmk
test/testprops/TestPropsTest.gmk
test/versionCheck/TestVersionCheck.gmk

I propose to clean these up.