util-lib: split string parsing related calls from util.[ch] into parse-util.[ch]

src/test/test-btrfs.c

@@ -25,6 +25,7 @@
 #include "fd-util.h"
 #include "fileio.h"
 #include "log.h"
+#include "parse-util.h"
 #include "string-util.h"
 #include "util.h"
 

src/test/test-cap-list.c

@@ -19,11 +19,13 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include "util.h"
-#include "fileio.h"
+#include <sys/prctl.h>
+
 #include "cap-list.h"
 #include "capability.h"
-#include <sys/prctl.h>
+#include "fileio.h"
+#include "parse-util.h"
+#include "util.h"
 
 /* verify the capability parser */
 static void test_cap_list(void) {

src/test/test-cgroup-util.c

@@ -22,6 +22,7 @@
 #include "cgroup-util.h"
 #include "fd-util.h"
 #include "formats-util.h"
+#include "parse-util.h"
 #include "process-util.h"
 #include "string-util.h"
 #include "test-helper.h"

src/test/test-fileio.c

@@ -28,6 +28,7 @@
 #include "env-util.h"
 #include "fd-util.h"
 #include "fileio.h"
+#include "parse-util.h"
 #include "process-util.h"
 #include "string-util.h"
 #include "strv.h"

src/test/test-util.c

@@ -39,14 +39,15 @@
 #include "fileio.h"
 #include "io-util.h"
 #include "mkdir.h"
+#include "parse-util.h"
 #include "process-util.h"
 #include "rm-rf.h"
 #include "signal-util.h"
 #include "string-util.h"
 #include "strv.h"
+#include "user-util.h"
 #include "util.h"
 #include "virt.h"
-#include "user-util.h"
 
 static void test_streq_ptr(void) {
         assert_se(streq_ptr(NULL, NULL));