[test] Fix errors in Import.py test (#234)

This test had Python2 style prints, and needs to call
ClangBuilder.getClangCMakeBuildFactory rather than
ClangBuilder.getClangBuildFactory.

Author: asb

test/buildbot/builders/Import.py

@@ -6,6 +6,6 @@
 
 # Just check that we can instantiate the build factors, what else can we do?
 
-print ClangBuilder.getClangBuildFactory()
+print(ClangBuilder.getClangCMakeBuildFactory())
 
-print SanitizerBuilder.getSanitizerBuildFactory()
+print(SanitizerBuilder.getSanitizerBuildFactory())