[NFC] fix trivial typos in comments

"the the" -> "the"

llvm-svn: 323176
diff --git a/llvm/include/llvm-c/lto.h b/llvm/include/llvm-c/lto.h
index 55f3e46..8ea2424 100644
--- a/llvm/include/llvm-c/lto.h
+++ b/llvm/include/llvm-c/lto.h
@@ -793,7 +793,7 @@
 
 /**
  * Sets the maximum cache size that can be persistent across build, in terms of
- * percentage of the available space on the the disk. Set to 100 to indicate
+ * percentage of the available space on the disk. Set to 100 to indicate
  * no limit, 50 to indicate that the cache size will not be left over half the
  * available space. A value over 100 will be reduced to 100, a value of 0 will
  * be ignored. An unspecified default value will be applied.