Fix letter overlap in warning message am: 0086c9445d

Original change: https://android-review.googlesource.com/c/platform/packages/modules/CaptivePortalLogin/+/2803420

Change-Id: Ied1158af94a74059e5746bfa447427bc59c72e2e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>