all: fix "the the" typos.

LGTM=bradfitz
R=golang-codereviews, bradfitz
CC=golang-codereviews
https://golang.org/cl/93470043
diff --git a/src/pkg/runtime/runtime-gdb.py b/src/pkg/runtime/runtime-gdb.py
index a33280f..eedac7c 100644
--- a/src/pkg/runtime/runtime-gdb.py
+++ b/src/pkg/runtime/runtime-gdb.py
@@ -378,7 +378,7 @@
 def find_goroutine(goid):
 	"""
 	find_goroutine attempts to find the goroutine identified by goid.
-	It returns a touple of gdv.Value's representing the the stack pointer
+	It returns a touple of gdv.Value's representing the stack pointer
 	and program counter pointer for the goroutine.
 
 	@param int goid