hg: code-tools/webrev: 7902652: Webrev: prints "awk: cmd. line:8: warning: regexp escape sequence `\@' is not a known regexp operator"

[erik.joelsson at oracle.com]

Changeset: 3a31bd9f4280
Author:    stefank
Date:      2020-04-23 06:07 -0700
URL:       https://hg.openjdk.java.net/code-tools/webrev/rev/3a31bd9f4280

7902652: Webrev: prints "awk: cmd. line:8: warning: regexp escape sequence `\@' is not a known regexp operator"
Reviewed-by: erikj, ihse, clanger

! webrev.ksh