strv: add strv_print

Clearer, and spares the temp variable.

src/locale/localectl.c

@@ -432,7 +432,6 @@ static int add_locales_from_libdir (Set *locales) {
 static int list_locales(DBusConnection *bus, char **args, unsigned n) {
         _cleanup_set_free_ Set *locales;
         _cleanup_strv_free_ char **l = NULL;
-        char **j;
         int r;
 
         locales = set_new(string_hash_func, string_compare_func);
@@ -455,8 +454,7 @@ static int list_locales(DBusConnection *bus, char **args, unsigned n) {
 
         pager_open_if_enabled();
 
-        STRV_FOREACH(j, l)
-                puts(*j);
+        strv_print(l);
 
         return 0;
 }
@@ -539,7 +537,6 @@ static int nftw_cb(
 
 static int list_vconsole_keymaps(DBusConnection *bus, char **args, unsigned n) {
         char _cleanup_strv_free_ **l = NULL;
-        char **i;
 
         keymaps = set_new(string_hash_func, string_compare_func);
         if (!keymaps)
@@ -566,9 +563,7 @@ static int list_vconsole_keymaps(DBusConnection *bus, char **args, unsigned n) {
 
         pager_open_if_enabled();
 
-        STRV_FOREACH(i, l)
-                puts(*i);
-
+        strv_print(l);
 
         return 0;
 }

src/shared/strv.c

@@ -774,3 +774,13 @@ char **strv_sort(char **l) {
         qsort(l, strv_length(l), sizeof(char*), str_compare);
         return l;
 }
+
+void strv_print(char **l) {
+        char **s;
+
+        if (!l)
+                return;
+
+        STRV_FOREACH(s, l)
+                puts(*s);
+}

src/shared/strv.h

@@ -87,3 +87,4 @@ bool strv_overlap(char **a, char **b);
 
 
 char **strv_sort(char **l);
+void strv_print(char **l);

src/test/test-env-replace.c

@@ -58,10 +58,7 @@ int main(int argc, char *argv[]) {
         strv_free(a);
 
         r = replace_env_argv((char**) line, (char**) env);
-
-        STRV_FOREACH(i, r)
-                printf("%s\n", *i);
-
+        strv_print(r);
         strv_free(r);
 
         t = normalize_env_assignment("foo=bar");
@@ -127,16 +124,13 @@ int main(int argc, char *argv[]) {
         strv_free(a);
         strv_free(b);
 
-        STRV_FOREACH(i, r)
-                printf("%s\n", *i);
+        strv_print(r);
 
         printf("CLEANED UP:\n");
 
         r = strv_env_clean(r);
 
-        STRV_FOREACH(i, r)
-                printf("%s\n", *i);
-
+        strv_print(r);
         strv_free(r);
 
         return 0;

src/timedate/timedatectl.c

@@ -425,7 +425,6 @@ static int list_timezones(DBusConnection *bus, char **args, unsigned n) {
         _cleanup_fclose_ FILE *f = NULL;
         _cleanup_strv_free_ char **zones = NULL;
         size_t n_zones = 0;
-        char **i;
 
         assert(args);
         assert(n == 1);
@@ -487,8 +486,7 @@ static int list_timezones(DBusConnection *bus, char **args, unsigned n) {
         pager_open_if_enabled();
 
         strv_sort(zones);
-        STRV_FOREACH(i, zones)
-                puts(*i);
+        strv_print(zones);
 
         return 0;
 }