Fix script example for diagnostic grepping

ehuss · ehuss · commit cf8e513788ff · 2023-05-05T13:18:16.000-07:00
diff --git a/guide/src/examples/diagnostics.md b/guide/src/examples/diagnostics.md
@@ -24,7 +24,7 @@ echo "$OUTPUT"
 # This indicates a regression when the text "non-ASCII" is in the output.
 #
 # If the regression is when the text is *not* in the output, remove the `!` prefix.
-! grep "non-ASCII" "$OUTPUT"
+! echo "$OUTPUT" | grep "non-ASCII"
 ```
 
 Then run something like:

Original file line number	Diff line number	Diff line change
`@@ -24,7 +24,7 @@ echo "$OUTPUT"`
`24`	`24`	`# This indicates a regression when the text "non-ASCII" is in the output.`
`25`	`25`	`#`
`26`	`26`	# If the regression is when the text is not in the output, remove the `!` prefix.
`27`		`-! grep "non-ASCII" "$OUTPUT"`
	`27`	`+! echo "$OUTPUT" \| grep "non-ASCII"`
`28`	`28`	```
`29`	`29`
`30`	`30`	`Then run something like:`