manpage: document new feature of propagating exit code/signal death status.

diff --git a/strace.1 b/strace.1
index 02784d02f66b36dd3f64779b2e0ae2ad3f5f6cea..c1c253853ad70686b3c81d2f435f3ab378352b7f 100644 (file)
--- a/strace.1
+++ b/strace.1
@@ -113,7 +113,8 @@ by a process and the signals which are received by a process.
 The name of each system call, its arguments and its return value
 are printed on standard error or to the file specified with the
 .B \-o
-option.
+option. When straced program exits, strace makes exit status
+available to the parent process of strace.
 .LP
 .B strace
 is a useful diagnostic, instructional, and debugging tool.