qemu: Fix /proc/**/stat parsing

Since commit v1.3.2-119-g1e34a8f9 which enabled debug-threads in QEMU
qemuGetProcessInfo would fail to parse stats for any thread with a space
in its name.

https://bugzilla.redhat.com/show_bug.cgi?id=1316803Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

src/qemu/qemu_driver.c

@@ -1460,7 +1460,7 @@ qemuGetProcessInfo(unsigned long long *cpuTime, int *lastCpu, long *vm_rss,
     if (!pidinfo ||
         fscanf(pidinfo,
                /* pid -> stime */
-               "%*d %*s %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %llu %llu"
+               "%*d (%*[^)]) %*c %*d %*d %*d %*d %*d %*u %*u %*u %*u %*u %llu %llu"
                /* cutime -> endcode */
                "%*d %*d %*d %*d %*d %*d %*u %*u %ld %*u %*u %*u"
                /* startstack -> processor */