Forbid using mutually exclusive options -D and -p together
Forbid using mutually exclusive options -D and -p together

If we use -D and -p option together to trace a multi-thread program, in
addition to the main thread, other threads could not be traced even if we
present -f option. Moreover, when executing 'strace -D -p <non-exist pid>',
strace could not terminate normally.

* strace.c (main): Check it.

Signed-off-by: Wang Chao <017c5b5ecd1af05550e9eb68fa0869dc2f98cddc@cn.fujitsu.com>

Yu-AndroidM/android_external_strace,CyanogenMod/android_external_strace,Distrotech/strace,geofft/strace,android-ia/platform_external_strace,DirtyUnicorns/android_external_strace,cuviper/strace,bigzz/strace_android,android-ia/platform_external_strace,geekboxzone/mmallow_external_strace,DirtyUnicorns/android_external_strace,AOSP-YU/platform_external_strace,MonkeyZZZZ/platform_external_strace,jamel/strace-plus,CyanogenMod/android_external_strace,TeamExodus/external_strace,Saruta/strace,Infinitive-OS/platform_external_strace,vrastogi/strace,bnoordhuis/strace,geekboxzone/lollipop_external_strace,timmattison/strace-arm,Yu-AndroidM/android_external_strace,pombredanne/strace,geofft/strace,YUPlayGodDev/platform_external_strace,pgbovine/strace-plus,jamel/strace-plus,YUPlayGodDev/platform_external_strace,bigzz/strace_android,AOSP-YU/platform_external_strace,cuviper/strace,Saruta/strace,gcode-mirror/strace-plus,geofft/strace,Saruta/strace,Infinitive-OS/platform_external_strace,bigzz/strace_android,AOSP-YU/platform_external_strace,Saruta/strace,pgbovine/strace-plus,hjl-tools/strace,kapdop/android_external_strace,pgbovine/strace-plus,xin3liang/platform_external_strace,pgbovine/strace-plus,pombredanne/strace,MonkeyZZZZ/platform_external_strace,CyanogenMod/android_external_strace,jamel/strace-plus,Distrotech/strace,lkundrak/strace,timmattison/strace-arm,TeamExodus/external_strace,lizh06/strace-plus,Infinitive-OS/platform_external_strace,kapdop/android_external_strace,CyanogenMod/android_external_strace,Distrotech/strace,hjl-tools/strace,MonkeyZZZZ/platform_external_strace,pombredanne/strace,Andrey9kin/revisor,gcode-mirror/strace-plus,Andrey9kin/revisor,cuviper/strace,Andrey9kin/revisor,TeamExodus/external_strace,TeamExodus/external_strace,vrastogi/strace,bnoordhuis/strace,pgbovine/strace-plus,TeamExodus/external_strace,Infinitive-OS/platform_external_strace,lkundrak/strace,vrastogi/strace,geekboxzone/lollipop_external_strace,geekboxzone/mmallow_external_strace,lizh06/strace-plus,vrastogi/strace,gcode-mirror/strace-plus,gcode-mirror/strace-plus,xin3liang/platform_external_strace,bigzz/strace_android,timmattison/strace-arm,bigzz/strace_android,geekboxzone/lollipop_external_strace,Yu-AndroidM/android_external_strace,Andrey9kin/revisor,YUPlayGodDev/platform_external_strace,android-ia/platform_external_strace,lkundrak/strace,bnoordhuis/strace,jamel/strace-plus,xin3liang/platform_external_strace,geekboxzone/mmallow_external_strace,Yu-AndroidM/android_external_strace,gcode-mirror/strace-plus,Infinitive-OS/platform_external_strace,DirtyUnicorns/android_external_strace,geekboxzone/mmallow_external_strace,DirtyUnicorns/android_external_strace,android-ia/platform_external_strace,CyanogenMod/android_external_strace,vrastogi/strace,MonkeyZZZZ/platform_external_strace,hjl-tools/strace,kapdop/android_external_strace,jamel/strace-plus,lkundrak/strace,Yu-AndroidM/android_external_strace,Distrotech/strace,geofft/strace,pombredanne/strace,geekboxzone/lollipop_external_strace,AOSP-YU/platform_external_strace,android-ia/platform_external_strace,MonkeyZZZZ/platform_external_strace,geekboxzone/lollipop_external_strace,geofft/strace,cuviper/strace,lizh06/strace-plus,geekboxzone/mmallow_external_strace,DirtyUnicorns/android_external_strace,kapdop/android_external_strace,cuviper/strace,lizh06/strace-plus,AOSP-YU/platform_external_strace,YUPlayGodDev/platform_external_strace,kapdop/android_external_strace,lizh06/strace-plus,xin3liang/platform_external_strace,YUPlayGodDev/platform_external_strace,bnoordhuis/strace,Distrotech/strace,Saruta/strace