Don't include tool files with leading underscores

Bruce Eckel · Bruce Eckel · commit 3febbb272262 · 2017-05-03T10:58:59.000-06:00
diff --git a/.gitignore b/.gitignore
@@ -107,3 +107,4 @@ buildSrc/
 /standardio/Redirecting.txt
 /threads/PSP2.txt
 /threads/primes.txt
+_*
