CLEANUP: assorted typo fixes in the code and comments

This is 22nd iteration of typo fixes
diff --git a/src/check.c b/src/check.c
index ee225a2..026f1c5 100644
--- a/src/check.c
+++ b/src/check.c
@@ -1201,7 +1201,7 @@
 			}
 			else if (check->result == CHK_RES_CONDPASS) {
 				/* check is OK but asks for stopping mode */
-				TRACE_DEVEL("report conditionnal success", CHK_EV_TASK_WAKE|CHK_EV_HCHK_END|CHK_EV_HCHK_SUCC, check);
+				TRACE_DEVEL("report conditional success", CHK_EV_TASK_WAKE|CHK_EV_HCHK_END|CHK_EV_HCHK_SUCC, check);
 				check_notify_stopping(check);
 			}
 			else if (check->result == CHK_RES_PASSED) {