fix(v1): enableUpdateTime fails if local directory name has spaces (#…

…2993)

Co-authored-by: Amirul Ahmad <amirul.ahmad@oleo.co.uk>

packages/docusaurus-1.x/lib/core/utils.js

@@ -64,7 +64,7 @@ function getGitLastUpdated(filepath) {
     const silentState = shell.config.silent; // Save old silent state.
     shell.config.silent = true;
     const result = shell
-      .exec(`git log --follow --summary --format="%ct, %an" ${filepath}`)
+      .exec(`git log --follow --summary --format="%ct, %an" "${filepath}"`)
       .stdout.trim();
     shell.config.silent = silentState;