Fix some issues reported by lintian

Fix some issues reported by lintian

• Trim trailing whitespace. (trailing-whitespace)

• Use secure copyright file specification URI. (insecure-copyright-format-uri)

• Remove duplicate line from changelog.

• Use secure URI in debian/watch.

• Bump debhelper from old 12 to 13. (package-uses-old-debhelper-compat-version)

This merge proposal was created automatically by the Janitor bot. For more information, including instructions on how to disable these merge proposals, see https://janitor.debian.net/lintian-fixes.

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The bot will automatically update the merge proposal to resolve merge conflicts or close the merge proposal when all changes are applied through other means (e.g. cherry-picks). Updates may take several hours to propagate.

Build and test logs for this branch can be found at https://janitor.debian.net/lintian-fixes/pkg/elkcode/133d96f7-f673-4b06-acfd-9db191d14fb6.

Debdiff

These changes affect the binary packages:

[The following lists of changes regard files as different if they have different names, permissions or owners.]

Files in second set of .debs but not in first

-rw-r--r--  root/root   /usr/lib/debug/.build-id/42/df85935ed82eeb2906039e189d261e9e535054.debug
-rw-r--r--  root/root   /usr/lib/debug/.build-id/54/3fbeb63a24253c283913bc6c64b39503a73592.debug
-rw-r--r--  root/root   /usr/lib/debug/.build-id/76/ed953301cac1799e41a355e31ef5d6a5a968f9.debug

Files in first set of .debs but not in second

-rw-r--r--  root/root   /usr/lib/debug/.build-id/48/c069c53967145c68de5f7593abe3c4084d96df.debug
-rw-r--r--  root/root   /usr/lib/debug/.build-id/64/43149c7b454cd99be3cb6c371afd47db9b19b7.debug
-rw-r--r--  root/root   /usr/lib/debug/.build-id/d0/8f88ee0dd3b0830a15f9372b4bf828dbf6efe8.debug

Control files of package elk-lapw: lines which differ (wdiff format)

• Depends: libblas3 | libblas.so.3, libc6 (>= 2.29), 2.34), libfftw3-double3 (>= 3.3.5), libgcc-s1 (>= 4.0), libgfortran5 (>= 10), libgomp1 (>= 4.9), liblapack3 | liblapack.so.3, libopenmpi3 (>= 4.1.4), libxc9 (>= 5.1.6), mpi-default-bin

Control files of package elk-lapw-dbgsym: lines which differ (wdiff format)

• Build-Ids: 48c069c53967145c68de5f7593abe3c4084d96df 6443149c7b454cd99be3cb6c371afd47db9b19b7 d08f88ee0dd3b0830a15f9372b4bf828dbf6efe8 42df85935ed82eeb2906039e189d261e9e535054 543fbeb63a24253c283913bc6c64b39503a73592 76ed953301cac1799e41a355e31ef5d6a5a968f9

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