Correct path to concept check test Jamfile

[SVN r32352]

status/Jamfile.v2

@@ -28,7 +28,7 @@ build-project ../libs/algorithm/string/test ;  # test-suite algorithm/string
 build-project ../libs/assign/test ;            # test-suite assign
 build-project ../libs/any/test ;               # test-suite any
 build-project ../libs/bind/test ;              # test-suite bind
-build-project ../libs/concept_check/test ;     # test-suite concept_check
+build-project ../libs/concept_check ;          # test-suite concept_check
 build-project ../libs/conversion/test ;        # test-suite conversion
 build-project ../libs/date_time/test  ;        # test-suite date_time
 build-project ../libs/dynamic_bitset ;         # test-suite dynamic_bitset