RFR: JDK-8257547: Handle multiple prereqs on the same line in deps files [v2]

[Tim Bell]

On Wed, 2 Dec 2020 21:41:26 GMT, Erik Joelsson <erikj at openjdk.org> wrote:

>> test/make/TestFixDepsFile.gmk line 60:
>> 
>>> 58: 	$(ECHO) " $(WORKSPACE_ROOT)/bar/baz \\" >> $(DEPS_FILE).expected
>>> 59: 	$(ECHO) " /foo/baz" >> $(DEPS_FILE).expected
>>> 60: 	$(DIFF) $(DEPS_FILE).expected $(DEPS_FILE)
>> 
>> Does this need to be:
>> $(DIFF) $(DEPS_FILE).expected $(DEPS_FILE).tmp
>
> No, the fix-deps-file macro takes file.tmp as input and outputs into file, so $(DEPS_FILE) is the output file from the macro in this case.

OK

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PR: https://git.openjdk.java.net/jdk/pull/1548