message: Include PATH variable in the debug output and change detection
diff: @@ -35,7 +35,7 @@ static OPENCV_BRANCH_32: Lazy<VersionReq> = Lazy::new(|| VersionReq::parse("~3.2
  static OPENCV_BRANCH_34: Lazy<VersionReq> = Lazy::new(|| VersionReq::parse("~3.4").expect("Can't parse OpenCV 3.4 version requirement"));
  static OPENCV_BRANCH_4: Lazy<VersionReq> = Lazy::new(|| VersionReq::parse("~4").expect("Can't parse OpenCV 4 version requirement"));
  -static ENV_VARS: [&str; 14] = [
  +static ENV_VARS: [&str; 15] = [
  "OPENCV_PACKAGE_NAME",
  "OPENCV_PKGCONFIG_NAME",
  "OPENCV_CMAKE_NAME",
  @@ -50,6 +50,7 @@ static ENV_VARS: [&str; 14] = [
  "PKG_CONFIG_PATH",
  "VCPKG_ROOT",
  "VCPKGRS_DYNAMIC",
  + "PATH",
  ];
  fn files_with_extension<'e>(dir: &Path, extension: impl AsRef<OsStr> + 'e) -> Result<impl Iterator<Item=PathBuf> + 'e> {
  