print_xattr_val: do not fetch data in case of !verbose || syserror
print_xattr_val: do not fetch data in case of !verbose || syserror

* xattr.c (print_xattr_val): Do not fetch data in case
of !verbose || syserror.   Use printaddr.

MonkeyZZZZ/platform_external_strace,cuviper/strace,kapdop/android_external_strace,kapdop/android_external_strace,kapdop/android_external_strace,MonkeyZZZZ/platform_external_strace,Distrotech/strace,MonkeyZZZZ/platform_external_strace,Distrotech/strace,Saruta/strace,Saruta/strace,vrastogi/strace,Saruta/strace,vrastogi/strace,MonkeyZZZZ/platform_external_strace,vrastogi/strace,Distrotech/strace,cuviper/strace,Distrotech/strace,Saruta/strace,cuviper/strace,Saruta/strace,kapdop/android_external_strace,cuviper/strace,kapdop/android_external_strace,vrastogi/strace,Distrotech/strace,MonkeyZZZZ/platform_external_strace,vrastogi/strace,cuviper/strace