trivial: fix spelling in add_loem_keys.sh

...also inflate my personal CL stats.

BUG=None
TEST=None
BRANCH=master
Signed-off-by: George Engelbrecht <engeg@chromium.org>

Change-Id: I4af2d8b2aa42b4e6d4d4ea36a6ca73a340aa4814
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2220336
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Commit-Queue: George Engelbrecht <engeg@google.com>
Tested-by: George Engelbrecht <engeg@google.com>
Auto-Submit: George Engelbrecht <engeg@google.com>
diff --git a/scripts/keygeneration/add_loem_keys.sh b/scripts/keygeneration/add_loem_keys.sh
index 198baf0..4cf8f4c 100755
--- a/scripts/keygeneration/add_loem_keys.sh
+++ b/scripts/keygeneration/add_loem_keys.sh
@@ -66,7 +66,7 @@
   highest_key=$(printf '%s\n' firmware.loem*.keyblock |
                 sed -r 's:firmware.loem(.*).keyblock:\1:' |
                 sort -n | tail -1)
-  echo "There are ${highest_key} loem keys; ading ${num_keys} more"
+  echo "There are ${highest_key} loem keys; adding ${num_keys} more"
 
   for ((k = highest_key + 1; k < highest_key + 1 + num_keys; ++k)); do
     echo "Generating LOEM ${k}"