Don't use pipe to replace here-string bash executes the RHS in a subshell so will break read expressions

SC2039.md

@@ -178,14 +178,15 @@ done
 Bash, ksh:
 
 ```Bash
-grep aaa <<< "$g"
+read aaa <<< $(grep foo bar)
 ```
 
 POSIX:
 
 ```sh
-# not exactly the same -- <<< adds a trailing \n if $g doesn't end with \n
-printf '%s' "$g" | grep aaa
+read << EOF
+$(grep foo bar)
+EOF
 ```
 
 ### echo flags