Use more inclusive language.

One turns out not to be used at all, and the pylintrc even uses the more
intention-revealing term in the machine readable part, just not the
comment!

Test: treehugger
Change-Id: I4db7f1cf4fa1aa8ee601857e4e4c400e2119887c
diff --git a/libc/tools/pylintrc b/libc/tools/pylintrc
index 2481b12..dd7dbf6 100644
--- a/libc/tools/pylintrc
+++ b/libc/tools/pylintrc
@@ -10,7 +10,7 @@
 # Profiled execution.
 profile=no
 
-# Add files or directories to the blacklist. They should be base names, not
+# Add files or directories to the ignore list. They should be base names, not
 # paths.
 ignore=CVS