Fix EOL at EOF

Commands used to search and replace:

    $ git grep -Ilz '.' | xargs -0 -I '{}' sh -c \
      "printf '%s\n' \"\$(cat '{}')\" >'{}'"

The above commands ensure that there is exaclty 1 line terminator at EOF
(rather than 0 or more than 1) on all non-empty text files.

This fixes all of the "new blank line at EOF" errors raised by git:

    $ git diff --check 4b825dc642cb6eb9a060e54bf8d69288fbee4904..HEAD |
      grep '^[^+]' | cut -f 3 -d : | LC_ALL=C sort | uniq -c
         21  new blank line at EOF.
         72  space before tab in indent.
          4  trailing whitespace.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/etc-cleanup/main.c b/src/etc-cleanup/main.c
index a51043e66..1f1a61f88 100644
--- a/src/etc-cleanup/main.c
+++ b/src/etc-cleanup/main.c
@@ -252,4 +252,4 @@ int main(int argc, char **argv) {
                 process_file(argv[i]);
 
         return 0;
-}
\ No newline at end of file
+}