roll: third_party/pigweed pw_build: Fix arg help text missing spaces

Original-Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/297132
Presubmit-Verified: CQ Bot Account <pigweed-scoped@luci-project-accounts.iam.gserviceaccount.com>
Original-Revision: e0ff413c3c4297b3efc86a326bd7abf5f97e3c07

Rolled-Repo: https://pigweed.googlesource.com/pigweed/pigweed
Rolled-Commits: b50149b80cbc0f..e0ff413c3c4297
Roll-Count: 1
Roller-URL: https://cr-buildbucket.appspot.com/build/8711785815112906385
GitWatcher: ignore
CQ-Do-Not-Cancel-Tryjobs: true
Change-Id: I950a245da1166b17ad0a870847752953946fa7aa
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/examples/+/299214
Bot-Commit: Pigweed Roller <pigweed-roller@pigweed-service-accounts.iam.gserviceaccount.com>
Lint: Lint 🤖 <android-build-ayeaye@system.gserviceaccount.com>
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diff --git a/third_party/pigweed b/third_party/pigweed
index b50149b..e0ff413 160000
--- a/third_party/pigweed
+++ b/third_party/pigweed
@@ -1 +1 @@
-Subproject commit b50149b80cbc0f02fcf5ded428e148dae3586cb8
+Subproject commit e0ff413c3c4297b3efc86a326bd7abf5f97e3c07