treewide: drop "RUN_" from "RUN_WITH_UMASK"

RUN_WITH_UMASK was initially conceived for spawning externals progs with the
umask set. But nowadays we use it various syscalls and stuff that doesn't "run"
anything, so the "RUN_" prefix has outlived its usefulness.

src/test/test-install-file.c

@@ -17,7 +17,7 @@ TEST(install_file) {
         assert_se(a = path_join(p, "foo"));
         assert_se(b = path_join(p, "bar"));
 
-        RUN_WITH_UMASK(0077)
+        WITH_UMASK(0077)
                 assert_se(write_string_file(a, "wups", WRITE_STRING_FILE_CREATE) >= 0);
 
         assert_se(lstat(a, &stat1) >= 0);

src/test/test-umask-util.c

@@ -12,7 +12,7 @@ int main(int argc, char *argv[]) {
         u = umask(0111);
 
         n = 0;
-        RUN_WITH_UMASK(0123) {
+        WITH_UMASK(0123) {
                 assert_se(umask(000) == 0123);
                 n++;
         }
@@ -20,7 +20,7 @@ int main(int argc, char *argv[]) {
         assert_se(n == 1);
         assert_se(umask(u) == 0111);
 
-        RUN_WITH_UMASK(0135) {
+        WITH_UMASK(0135) {
                 assert_se(umask(000) == 0135);
                 n++;
         }
@@ -28,7 +28,7 @@ int main(int argc, char *argv[]) {
         assert_se(n == 2);
         assert_se(umask(0111) == u);
 
-        RUN_WITH_UMASK(0315) {
+        WITH_UMASK(0315) {
                 assert_se(umask(000) == 0315);
                 n++;
                 break;