message: Consolidate token fetch errors into fewer distinct error messages
diff: @@ -300,7 +300,7 @@ export function toInstrumentedOdspTokenFetcher(
  if (token === null && throwOnNullToken) {
  throw new NonRetryableError(
  // pre-0.58 error message: Token is null for ${name} call
  - `The Host-provided token fetcher for ${name} call returned null`,
  + `The Host-provided token fetcher returned null`,
  OdspErrorType.fetchTokenError,
  { method: name, driverVersion });
  }
  @@ -312,7 +312,7 @@ export function toInstrumentedOdspTokenFetcher(
  const tokenError = wrapError(
  error,
  (errorMessage) => new NetworkErrorBasic(
  - `The Host-provided token fetcher for ${name} call threw an error: ${errorMessage}`,
  + `The Host-provided token fetcher threw an error: ${errorMessage}`,
  OdspErrorType.fetchTokenError,
  typeof rawCanRetry === "boolean" ? rawCanRetry : false /* canRetry */,
  { method: name, driverVersion }));
  