test: output from html report was overwriting lcov report (googleapis#22)

Author: Benjamin E. Coe

.c8rc

@@ -1,6 +1,6 @@
 {
   "report-dir": "./.coverage",
-  "reporter": ["text", "lcov", "html"],
+  "reporter": ["text", "lcov"],
   "exclude": [
     "**/*-test",
     "**/.coverage",

package.json

@@ -5,11 +5,11 @@
   "main": "./build/src/index.js",
   "bin": "./build/src/bin/release-please.js",
   "scripts": {
-    "test": "cross-env ENVIRONMENT=test c8 --reporter=html --reporter=text mocha --recursive --timeout=5000 build/test",
+    "test": "cross-env ENVIRONMENT=test c8 mocha --recursive --timeout=5000 build/test",
     "docs-test": "echo add docs tests",
     "system-test": "cross-env ENVIRONMENT=test mocha --timeout=20000 build/system-test",
     "presystem-test": "npm run compile",
-    "test:all": "cross-env ENVIRONMENT=test c8 --reporter=html --reporter=text mocha --recursive --timeout=20000 build/system-test build/test",
+    "test:all": "cross-env ENVIRONMENT=test c8 mocha --recursive --timeout=20000 build/system-test build/test",
     "test:snap": "SNAPSHOT_UPDATE=1 npm test",
     "clean": "gts clean",
     "prepare": "npm run compile",