tree-wide: drop spurious newlines (#8764)

Double newlines (i.e. one empty lines) are great to structure code. But
let's avoid triple newlines (i.e. two empty lines), quadruple newlines,
quintuple newlines, …, that's just spurious whitespace.

It's an easy way to drop 121 lines of code, and keeps the coding style
of our sources a bit tigther.

src/test/test-exec-util.c

@@ -236,7 +236,6 @@ const gather_stdout_callback_t gather_stdout[] = {
         gather_stdout_three,
 };
 
-
 static void test_stdout_gathering(void) {
         char template[] = "/tmp/test-exec-util.XXXXXXX";
         const char *dirs[] = {template, NULL};

src/test/test-fileio.c

@@ -561,7 +561,6 @@ static void test_search_and_fopen(void) {
         assert_se(r < 0);
 }
 
-
 static void test_search_and_fopen_nulstr(void) {
         const char dirs[] = "/tmp/foo/bar\0/tmp\0";
         char name[] = "/tmp/test-search_and_fopen.XXXXXX";

src/test/test-job-type.c

@@ -83,6 +83,5 @@ int main(int argc, char*argv[]) {
                 }
         }
 
-
         return 0;
 }

src/test/test-libudev.c

@@ -394,7 +394,6 @@ int main(int argc, char *argv[]) {
                         assert_not_reached("Unhandled option code.");
                 }
 
-
         /* add sys path if needed */
         if (!startswith(syspath, "/sys"))
                 syspath = strjoina("/sys/", syspath);

src/test/test-locale-util.c

@@ -5,7 +5,6 @@
   Copyright 2014 Ronny Chevalier
 ***/
 
-
 #include "locale-util.h"
 #include "macro.h"
 #include "strv.h"

src/test/test-nss.c

@@ -181,7 +181,6 @@ static void test_gethostbyname4_r(void *handle, const char *module, const char *
         }
 }
 
-
 static void test_gethostbyname3_r(void *handle, const char *module, const char *name, int af) {
         const char *fname;
         _nss_gethostbyname3_r_t f;
@@ -401,7 +400,6 @@ static int test_one_module(const char* dir,
         char **name;
         int i;
 
-
         log_info("======== %s ========", module);
 
         handle = open_handle(streq(module, "dns") ? NULL : dir,

src/test/test-parse-util.c

@@ -662,7 +662,6 @@ static void test_parse_nice(void) {
         assert_se(parse_nice("19", &n) >= 0 && n == 19);
         assert_se(parse_nice("+19", &n) >= 0 && n == 19);
 
-
         assert_se(parse_nice("", &n) == -EINVAL);
         assert_se(parse_nice("-", &n) == -EINVAL);
         assert_se(parse_nice("+", &n) == -EINVAL);

src/test/test-path.c

@@ -102,7 +102,6 @@ static void check_stop_unlink(Manager *m, Unit *unit, const char *test_path, con
                                 service_state_to_string(service->state),
                                 service_result_to_string(service->result));
 
-
                 /* But we timeout if the service has not been started in the allocated time */
                 n = now(CLOCK_MONOTONIC);
                 if (ts + timeout < n) {

src/test/test-stat-util.c

@@ -48,7 +48,6 @@ static void test_is_symlink(void) {
         assert_se(is_symlink(name_link) == 1);
         assert_se(is_symlink("/a/file/which/does/not/exist/i/guess") < 0);
 
-
         unlink(name);
         unlink(name_link);
 }

src/test/test-string-util.c

@@ -135,7 +135,6 @@ static void test_strrep(void) {
         assert_se(streq(zero, ""));
 }
 
-
 static void test_strappend(void) {
         _cleanup_free_ char *t1, *t2, *t3, *t4;
 

src/test/test-strv.c

@@ -89,7 +89,6 @@ static const char* const input_table_one_empty[] = {
         NULL,
 };
 
-
 static void test_strv_find(void) {
         assert_se(strv_find((char **)input_table_multiple, "three"));
         assert_se(!strv_find((char **)input_table_multiple, "four"));

src/test/test-unit-file.c

@@ -383,7 +383,6 @@ static void test_config_parse_exec(void) {
         c1 = c1->command_next;
         check_execcommand(c1, "/bin/grep", NULL, "\\w+\\K", NULL, false);
 
-
         log_info("/* trailing backslash: \\ */");
         /* backslash is invalid */
         r = config_parse_exec(NULL, "fake", 4, "section", 1,

src/test/test-unit-name.c

@@ -412,7 +412,6 @@ static void test_unit_name_escape(void) {
         assert_se(streq(r, "ab\\x2b\\x2dc.a-bc\\x40foo.service"));
 }
 
-
 static void test_u_n_t_one(const char *name, const char *expected, int ret) {
         _cleanup_free_ char *f = NULL;