Use the right process to insert breakpoints for stepping over atomic block
diff --git a/breakpoint.h b/breakpoint.h
index e933d9d..50a1e14 100644
--- a/breakpoint.h
+++ b/breakpoint.h
@@ -97,8 +97,8 @@
/* Utility function that does what typically needs to be done when a
* breakpoint is to be inserted. It checks whether there is another
- * breakpoint in PROC for given ADDR. If not, it allocates memory for
- * a new breakpoint on the heap, initializes it, and calls
+ * breakpoint in PROC->LEADER for given ADDR. If not, it allocates
+ * memory for a new breakpoint on the heap, initializes it, and calls
* PROC_ADD_BREAKPOINT to add the newly-created breakpoint. For newly
* added as well as preexisting breakpoints, it then calls
* BREAKPOINT_TURN_ON. If anything fails, it cleans up and returns