message: Fix About UI when there's no commit info
  On some cases and build environments, there is no Git available for the
  About UI, showing empty parens instead of the usual commit hash. This
  fixes the case on both UI and core versions.
diff: @@ -30,21 +30,20 @@ class AboutUIModal extends React.Component<AboutUIModalProps, AboutUIModalState>
  };
  render() {
  + const uiVersion =
  + process.env.REACT_APP_GIT_HASH == ''
  + ? process.env.REACT_APP_VERSION
  + : `${process.env.REACT_APP_VERSION} (${process.env.REACT_APP_GIT_HASH})`;
  + const coreVersion =
  + this.props.status[KIALI_CORE_COMMIT_HASH] == ''
  + ? this.props.status[KIALI_CORE_VERSION]
  + : `${this.props.status[KIALI_CORE_VERSION]} (${this.props.status[KIALI_CORE_COMMIT_HASH]})`;
  +
  return (
  <AboutModal show={this.state.showModal} onHide={this.close} productTitle={<img src={KialiLogo} />}>
  <AboutModal.Versions>
  - <AboutModal.VersionItem
  - label="kiali-ui"
  - versionText={`${process.env.REACT_APP_VERSION} (${process.env.REACT_APP_GIT_HASH})`}
  - />
  - <AboutModal.VersionItem
  - label="kiali"
  - versionText={
  - this.props.status
  - ? `${this.props.status[KIALI_CORE_VERSION]} (${this.props.status[KIALI_CORE_COMMIT_HASH]})`
  - : 'Unknown'
  - }
  - />
  + <AboutModal.VersionItem label="kiali-ui" versionText={uiVersion!} />
  + <AboutModal.VersionItem label="kiali" versionText={coreVersion!} />
  <h3>Components </h3>
  {this.props.components &&
  this.props.components.map(component => (
  