Correct some spellings.

Test: mma
Change-Id: Icc49a4ee76f12d302ed18982d334f2f70b7263a8
diff --git a/common/utils.h b/common/utils.h
index c102a16..5c44083 100644
--- a/common/utils.h
+++ b/common/utils.h
@@ -110,7 +110,7 @@
 // occurs, -1 is returned.
 off_t BlockDevSize(int fd);
 
-// Returns the size of the file at path, or the file desciptor fd. If the file
+// Returns the size of the file at path, or the file descriptor fd. If the file
 // is actually a block device, this function will automatically call
 // BlockDevSize. If the file doesn't exist or some error occurrs, -1 is
 // returned.