Fix a bug added in http://root.cern.ch/gitweb?p=root.git;a=commitdiff;h=d28fb0320423fe86b57f31ff1755226e98d46ed9 in computing the number of free parameters in FitResult.
Fix a bug added in http://root.cern.ch/gitweb?p=root.git;a=commitdiff;h=d28fb0320423fe86b57f31ff1755226e98d46ed9
in computing the number of free parameters in FitResult.

tc3t/qoot,tc3t/qoot,kirbyherm/root-r-tools,tc3t/qoot,kirbyherm/root-r-tools,kirbyherm/root-r-tools,tc3t/qoot,tc3t/qoot,kirbyherm/root-r-tools,tc3t/qoot,kirbyherm/root-r-tools,tc3t/qoot,tc3t/qoot,tc3t/qoot,tc3t/qoot,kirbyherm/root-r-tools,kirbyherm/root-r-tools