Minor tweak to the wording in perft output.
tree2fe11973c28667b921730421d88df1f348e82c10
-rw-r--r-- 34 .gitignore
-rw-r--r-- 35147 COPYING
-rw-r--r-- 512 Makefile
-rw-r--r-- 498 Makefile.mgw
-rw-r--r-- 535 Makefile.win
-rw-r--r-- 2167 README
drwxr-xr-x - api_docs
drwxr-xr-x - src