doc: more doubled words
I wrote a tool.
R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/8695047
diff --git a/doc/gccgo_contribute.html b/doc/gccgo_contribute.html
index 4d268e0..b2a0b65 100644
--- a/doc/gccgo_contribute.html
+++ b/doc/gccgo_contribute.html
@@ -84,7 +84,7 @@
build directory. This will run various tests
under <code>gcc/testsuite/go.*</code> and will also run
the <code>libgo</code> testsuite. This copy of the tests from the
-main Go repository is run using the DejaGNU script found in
+main Go repository is run using the DejaGNU script found
in <code>gcc/testsuite/go.test/go-test.exp</code>.
</p>
