CLEANUP: assorted typo fixes in the code and comments
This is 10th iteration of typo fixes
diff --git a/include/import/atomic-ops.h b/include/import/atomic-ops.h
index 0081f9a..6fe4c78 100644
--- a/include/import/atomic-ops.h
+++ b/include/import/atomic-ops.h
@@ -434,7 +434,7 @@
}) \
)
-/* exchage value <x> with integer value pointed to by pointer <ptr>, and return
+/* exchange value <x> with integer value pointed to by pointer <ptr>, and return
* previous <*ptr> value. <x> must be of the same size as <*ptr>.
*/
#define pl_xchg(ptr, x) ( \