ci: configure linelint for the schema of the pinned 0.0.6 version

The fernandrone/linelint action is pinned to 0.0.6, whose configuration
schema differs from the current project README: the only supported rule
is end-of-file, controlled by rules.end-of-file.enable, and exclusions
use gitignore-style ignore patterns. The previous configuration file
followed the newer schema, so the pinned version parsed it to zero
enabled rules and failed with "No valid rule enabled".

Rewrite the configuration for the 0.0.6 schema, enable the end-of-file
rule with single-new-line, and normalise the eleven first-party files
that ended without a final newline or with a trailing blank line. The
cmake/version.cmake file is excluded because the version-cmake-up-to-date
job diffs it byte-for-byte against rnpgp/cmake-versioning, whose copy
does not end with a newline.

Author: ronaldtse

.clang-format

@@ -64,4 +64,3 @@ Standard:        Auto
 TabWidth:        8
 UseTab:          Never
 ...
-

.linelint.yml

@@ -1,19 +1,19 @@
+# Configured for linelint 0.0.6, the version pinned by
+# fernandrone/linelint@0.0.6 in .github/workflows/lint.yml. That version
+# implements the end-of-file rule only, with gitignore-style `ignore`
+# patterns; the newer schemas on the project README are not compatible.
 rules:
-  trailing_whitespace:
-    enabled: true
-  end_of_file:
-    enabled: true
-  inserted_final_newline:
-    enabled: true
-  tabs:
-    enabled: true
-  conflicts:
-    enabled: true
-exclude:
+  end-of-file:
+    enable: true
+    single-new-line: true
+ignore:
   - 'src/tests/data/'
   - 'src/lib/nlohmann/'
   - 'src/libsexpp/'
   - 'cmake/Modules/FindWindowsSDK.cmake'
+  # Kept byte-identical to rnpgp/cmake-versioning, whose copy does not end
+  # with a newline; the version-cmake-up-to-date job diffs the two files.
+  - 'cmake/version.cmake'
   - 'ci/utf8-manifest'
   - 'docs/'
   - 'CHANGELOG.md'

_config.yml

@@ -1 +1 @@
-theme: jekyll-theme-leap-day
+theme: jekyll-theme-leap-day

ci-legacy/style-check.sh

@@ -11,4 +11,3 @@ if [ "$diffs" != "" ]; then
   echo "$diffs"
   exit 1
 fi
-

cmake/Modules/FindGnuPG.cmake

@@ -134,4 +134,3 @@ find_package_handle_standard_args(GnuPG
   VERSION_VAR GNUPG_VERSION
   HANDLE_COMPONENTS
 )
-

cmake/librnp.pc.in

@@ -10,4 +10,3 @@ Version: @PROJECT_VERSION@
 Libs: -L${libdir} -l@LIBRNP_OUTPUT_NAME@
 Libs.private: @LIBRNP_PRIVATE_LIBS@
 Cflags: -I${includedir}
-

cmake/rnp_tests_discover.cmake

@@ -37,4 +37,3 @@ foreach(line ${output})
 endforeach()
 
 file(WRITE "${CTEST_FILE}" "${script}")
-

default.nix

@@ -41,4 +41,4 @@ stdenv.mkDerivation rec {
     platforms = platforms.all;
     maintainers = with maintainers; [ ribose-jeffreylau ];
   };
-}
+}

flake.nix

@@ -23,4 +23,4 @@
           ];
         };
       });
-}
+}

git-hooks/enable.sh

@@ -1,3 +1,2 @@
 #!/bin/sh
 ln -sf ../../git-hooks/pre-commit.sh "$(git rev-parse --show-toplevel)/.git/hooks/pre-commit"
-