Index: src/wp-content/themes/twentynineteen/package-lock.json
===================================================================
--- src/wp-content/themes/twentynineteen/package-lock.json	(revision 43945)
+++ src/wp-content/themes/twentynineteen/package-lock.json	(working copy)
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@@ -4096,16 +4035,6 @@
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@@ -4196,12 +4125,6 @@
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Index: src/wp-content/themes/twentynineteen/package.json
===================================================================
--- src/wp-content/themes/twentynineteen/package.json	(revision 43945)
+++ src/wp-content/themes/twentynineteen/package.json	(working copy)
@@ -11,7 +11,7 @@
     "autoprefixer": "^9.1.5",
     "chokidar-cli": "^1.2.1",
     "node-sass": "^4.9.3",
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+    "npm-run-all": "^4.1.5",
     "postcss-cli": "^6.0.1",
     "postcss-focus-within": "^3.0.0",
     "rtlcss": "^2.4.0"
