[PATCH] Document -C/-D

[Andreas Schwab]

* strace.c (usage): Document -C.
* strace.1: Document -D.
---
 strace.1 |    8 +++++++-
 strace.c |    5 +++--
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/strace.1 b/strace.1
index a98b9f9..c3d82af 100644
--- a/strace.1
+++ b/strace.1
@@ -43,7 +43,7 @@ strace \- trace system calls and signals
 .SH SYNOPSIS
 .B strace
 [
-.B \-CdffhiqrtttTvxx
+.B \-CdDffhiqrtttTvxx
 ]
 [
 .BI \-a column
@@ -84,6 +84,9 @@ strace \- trace system calls and signals
 .B strace
 .B \-c
 [
+.B \-D
+]
+[
 .BI \-e expr
 ]
 \&...
@@ -255,6 +258,9 @@ Like
 .B \-c
 but also print regular output while processes are running.
 .TP
+.B -D
+run tracer process as a detached grandchild, not as parent.
+.TP
 .B \-d
 Show some debugging output of
 .B strace
diff --git a/strace.c b/strace.c
index 10d8e5c..3f67670 100644
--- a/strace.c
+++ b/strace.c
@@ -168,12 +168,13 @@ FILE *ofp;
 int exitval;
 {
 	fprintf(ofp, "\
-usage: strace [-dffhiqrtttTvVxx] [-a column] [-e expr] ... [-o file]\n\
+usage: strace [-CdDffhiqrtttTvVxx] [-a column] [-e expr] ... [-o file]\n\
               [-p pid] ... [-s strsize] [-u username] [-E var=val] ...\n\
               [command [arg ...]]\n\
-   or: strace -c -D [-e expr] ... [-O overhead] [-S sortby] [-E var=val] ...\n\
+   or: strace -c [-D] [-e expr] ... [-O overhead] [-S sortby] [-E var=val] ...\n\
               [command [arg ...]]\n\
 -c -- count time, calls, and errors for each syscall and report summary\n\
+-C -- like -c but also print regular output while processes are running\n\
 -f -- follow forks, -ff -- with output into separate files\n\
 -F -- attempt to follow vforks, -h -- print help message\n\
 -i -- print instruction pointer at time of syscall\n\
-- 
1.7.1


-- 
Andreas Schwab, schwab at redhat.com
GPG Key fingerprint = D4E8 DBE3 3813 BB5D FA84  5EC7 45C6 250E 6F00 984E
"And now for something completely different."