man: fix compilation warning in sd_journal_query_unique example

diff --git a/man/sd_journal_query_unique.xml b/man/sd_journal_query_unique.xml
index b0e43dfeebbf269dc254c9e4186f00f507d8700d..f2f8af0eb5a78dcf0824cff74f0f87f82ab17a22 100644 (file)
--- a/man/sd_journal_query_unique.xml
+++ b/man/sd_journal_query_unique.xml
@@ -191,7 +191,7 @@ int main(int argc, char *argv[]) {
                 return 1;
         }
         SD_JOURNAL_FOREACH_UNIQUE(j, d, l)
-                printf("%.*s\n", (int) l, d);
+                printf("%.*s\n", (int) l, (const char*) d);
         sd_journal_close(j);
         return 0;
 }</programlisting>