--test_summary is not documented in the logging section

[endobson]

This flag should be organized correctly so that it can easily be found.

bazel/src/main/java/com/google/devtools/build/lib/exec/ExecutionOptions.java

Lines 170 to 181 in 913b66c

	@Option(
	name = "test_summary",
	defaultValue = "short",
	converter = TestStrategy.TestSummaryFormat.Converter.class,
	documentationCategory = OptionDocumentationCategory.UNCATEGORIZED,
	effectTags = {OptionEffectTag.UNKNOWN},
	help =
	"Specifies the desired format ot the test summary. Valid values are 'short' to print "
	+ "information only about tests executed, 'terse', to print information only about "
	+ "unsuccessful tests that were run, 'detailed' to print detailed information about "
	+ "failed test cases, and 'none' to omit the summary."
	)

Also theres a typo on line 177 "ot" -> "of".

Context:
https://stackoverflow.com/questions/50077918/how-to-make-bazel-print-less