Bug#871767: lintian: [checks/cruft] use substr instead of substring in example

[Alex Muntada]

Package: lintian
Version: 2.5.52
Severity: minor

Dear Maintainers,
the mentions-deprecated-usr-lib-perl5-directory check show an
example to add in debian/rules that uses a misspelled Perl
function that gives an error:

$ perl -MConfig -wE'say substring($Config{vendorarch},1)'
Undefined subroutine &main::substring called at -e line 1.

The right spelling would be substr (patch attached at the end).

Cheers!
Alex


-- System Information:
Debian Release: buster/sid
  APT prefers unstable
  APT policy: (500, 'unstable')
Architecture: amd64 (x86_64)

Kernel: Linux 4.9.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=C, LC_CTYPE=C (charmap=ANSI_X3.4-1968), LANGUAGE=C 
(charmap=ANSI_X3.4-1968)
Shell: /bin/sh linked to /bin/dash
Init: unable to detect

Versions of packages lintian depends on:
ii  binutils                          2.29-4
ii  bzip2                             1.0.6-8.1
ii  diffstat                          1.61-1+b1
ii  dpkg                              1.18.24
ii  file                              1:5.31-1
ii  gettext                           0.19.8.1-2+b1
ii  intltool-debian                   0.35.0+20060710.4
ii  libapt-pkg-perl                   0.1.32+b2
ii  libarchive-zip-perl               1.59-1
ii  libclass-accessor-perl            0.34-1
ii  libclone-perl                     0.38-2+b2
ii  libdpkg-perl                      1.18.24
ii  libemail-valid-perl               1.202-1
ii  libfile-basedir-perl              0.07-1
ii  libipc-run-perl                   0.96-1
ii  liblist-moreutils-perl            0.416-1+b3
ii  libparse-debianchangelog-perl     1.2.0-12
ii  libperl5.26 [libdigest-sha-perl]  5.26.0-5
ii  libtext-levenshtein-perl          0.13-1
ii  libtimedate-perl                  2.3000-2
ii  liburi-perl                       1.72-1
ii  libxml-simple-perl                2.24-1
ii  libyaml-libyaml-perl              0.63-2+b2
ii  man-db                            2.7.6.1-2
ii  patchutils                        0.3.4-2
ii  perl                              5.26.0-5
ii  t1utils                           1.40-2
ii  xz-utils                          5.2.2-1.3

Versions of packages lintian recommends:
pn  libperlio-gzip-perl  <none>

Versions of packages lintian suggests:
pn  binutils-multiarch     <none>
ii  dpkg-dev               1.18.24
ii  libhtml-parser-perl    3.72-3+b2
ii  libtext-template-perl  1.46-1



diff --git a/checks/cruft.desc b/checks/cruft.desc
index 57ed5cc95..e3948565b 100644
--- a/checks/cruft.desc
+++ b/checks/cruft.desc
@@ -857,7 +857,7 @@ Info: As of Perl 5.20, the vendorarch directory is /usr/lib/&lt;triplet&gt;/perl
  but this package still uses usr/lib/perl5 in some of the files under debian/.
  Please replace that with the value of $Config{vendorarch} configuration
  parameter, e.g.
-  $(shell perl -MConfig -wE'say substring($$Config{vendorarch},1)')
+  $(shell perl -MConfig -wE'say substr($$Config{vendorarch},1)')
 
 Tag: readme-source-is-dh_make-template
 Severity: important

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