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.

4 files changed, 2 insertions, 4 deletions

diff --git a/src/fnettrace/fnettrace.h b/src/fnettrace/fnettrace.h
index d3bc6439e..629b8ce5b 100644
--- a/src/fnettrace/fnettrace.h
+++ b/src/fnettrace/fnettrace.h
@@ -70,4 +70,4 @@ char* retrieve_hostname(uint32_t ip);
 // tail.c
 void tail(const char *logfile);
 
-#endif
\ No newline at end of file
+#endif
diff --git a/src/fnettrace/hostnames.c b/src/fnettrace/hostnames.c
index 4f5641dfb..878a67123 100644
--- a/src/fnettrace/hostnames.c
+++ b/src/fnettrace/hostnames.c
@@ -121,4 +121,3 @@ errexit:
         fprintf(stderr, "Error: invalid line %d in file %s\n", line, fname);
         exit(1);
 }
-
diff --git a/src/fnettrace/radix.c b/src/fnettrace/radix.c
index 97e890bec..a1d510a61 100644
--- a/src/fnettrace/radix.c
+++ b/src/fnettrace/radix.c
@@ -152,4 +152,3 @@ char *radix_longest_prefix_match(uint32_t ip) {
 
         return (rv)? rv->name: NULL;
 }
-
diff --git a/src/fnettrace/radix.h b/src/fnettrace/radix.h
index 85a75d0d7..d75fe3999 100644
--- a/src/fnettrace/radix.h
+++ b/src/fnettrace/radix.h
@@ -24,4 +24,4 @@ extern int radix_nodes;
 char *radix_longest_prefix_match(uint32_t ip);
 char *radix_add(uint32_t ip, uint32_t mask, char *name);
 
-#endif
\ No newline at end of file
+#endif