manpage: minor corrections

$ groff -ww -mandoc -z strace.1
strace.1:65: warning: macro `IX' not defined

* strace.1: define IX macro as empty for groff.
Change remaining '-' as minus to '\-'.
Have two word spaces after a full stop as an end of sentence.
Use extra space ('\,' or '\/') between roman and italic characters.
Based on patch by Bjarni Ingi Gislason <bjarniig@rhi.hi.is>.
This fixes Debian bug #725987.
debian: update control file

* debian/control (strace64): Fix a typo in package description.
Patch by Pascal De Vuyst <pascal.devuyst@gmail.com>.
(strace, strace-udeb): Add x32 to architecture list.
Patch by Guillaume Morin <guillaume@morinfr.org>.
(strace, strace-udeb): Add or1k to architecture list.
Patch by Christian Svensson <debian@cmd.nu>.
(strace, strace-udeb): Add arm64 to architecture list,
and remove defunct arm.
Patch by Wookey <wookey@debian.org>.

This fixes Debian bugs: #697625, #727018, #742235, #749956.
debian: enable security hardening features

* debian/rules: Follow the advice in https://wiki.debian.org/Hardening
and enable maximum hardening as for programs that handle untrusted data.
Patch by Markus <waldeck@gmx.de>.
Warn about flags that have no effect with -c

* strace.c (init): Issue a warning if -i, -k, -r, -t, -T, or -y is used
along with -c.
This fixes Debian bug #443895.
NEWS: Prepare for 4.9 release
Initial README.md
Add basic support for JSON output with option '-j'

* strace.c(init, usage, tprints, tprintf): Add support for parse '-j' option,
Modify tprint* use the hook framework.
* strace.1: Add description for '-j'
* output.c: New file. Provide the output hook framework
* Makefile.am: Add the new file output.c to strace_SOURCES
Modify sys_read()/sys_write() to support JSON output

* io.c(sys_read, sys_write): Use the hook framework to
support JSON output.
Simple test for JSON output

Add some very simple test for JSON output in test directory.
Add support to print syscall names

* syscall.c(trace_call_entering\exiting): Support JSON output of
the syscall names and the begin\end brace of JSON entry.

* test/json_io.c: Add test for readv() and writev().
Add basic support for readv(),writev() in io.c

* io.c(readv,writev): now just wrap the buffer parameter as string.
We should do more to make the buffer parameter as a Json list.

* test/json_io.c: fix small compiling errors.