linux-user: fill out task state in /proc/self/stat

Some programs want to match an actual task state character.

Signed-off-by: Andreas Schwab <schwab@suse.de>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <mvmedq2kxoe.fsf@suse.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index 69cc4b6..49a4fee 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -8079,6 +8079,9 @@
             gchar *bin = g_strrstr(ts->bprm->argv[0], "/");
             bin = bin ? bin + 1 : ts->bprm->argv[0];
             g_string_printf(buf, "(%.15s) ", bin);
+        } else if (i == 2) {
+            /* task state */
+            g_string_assign(buf, "R "); /* we are running right now */
         } else if (i == 3) {
             /* ppid */
             g_string_printf(buf, FMT_pid " ", getppid());