chore: update config snapshot when manually making docs

The better to avoid having to do patches like 771a1cb.

PR-URL: #3664
Credit: @isaacs
Close: #3664
Reviewed-by: @wraithgar

Makefile

@@ -30,7 +30,12 @@ all: docs
 
 docs: mandocs htmldocs
 
+# don't regenerate the snapshot if we're generating
+# snapshots, since presumably we just did that.
 mandocs: dev-deps $(mandocs)
+	@ ! [ $${npm_lifecycle_event} = "snap" ] && \
+	  ! [ $${npm_lifecycle_event} = "postsnap" ] && \
+	  TAP_SNAPSHOT=1 node test/lib/utils/config/definitions.js || true
 
 $(version_mandocs): package.json
 

package.json

@@ -209,7 +209,7 @@
     "test": "tap",
     "check-coverage": "tap",
     "snap": "tap",
-    "postsnap": "make -s docs/content/*/*.md",
+    "postsnap": "make -s mandocs",
     "test:nocleanup": "NO_TEST_CLEANUP=1 npm run test --",
     "sudotest": "sudo npm run test --",
     "sudotest:nocleanup": "sudo NO_TEST_CLEANUP=1 npm run test --",