vold: If we're bootstrapping, don't automatically mount the SD card. Also fixes some
error display bugs (our printf doesnt support %m)

Signed-off-by: San Mehat <san@google.com>
diff --git a/vold/blkdev.c b/vold/blkdev.c
index 3167507..1482a1a 100644
--- a/vold/blkdev.c
+++ b/vold/blkdev.c
@@ -73,7 +73,7 @@
     }
 
     if (ioctl(fd, BLKGETSIZE, &blk->nr_sec)) {
-        LOGE("Unable to get device size (%m)");
+        LOGE("Unable to get device size (%s)", strerror(errno));
         return -errno;
     }
     close(fd);