[UNIKRAFT/APPHELLOWORLD PATCH 1/6] Add comment to closing of feature macros (`#endif`)

[Simon Kuenzer <simon.kuenzer@xxxxxxxxx>]

Applies best practices for feature macros with multi-line code blocks:
Adds a comment with the corresponding feature macro name after `#endif`
directive.

Signed-off-by: Simon Kuenzer <simon.kuenzer@xxxxxxxxx>
---
 main.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/main.c b/main.c
index c442058..a0d6a73 100644
--- a/main.c
+++ b/main.c
@@ -20,13 +20,14 @@ static const char *spinner[] = {
        " <'((<       ",
        "<'((<        ",
 };
-#endif
+#endif /* CONFIG_APPHELLOWORLD_SPINNER */
 
 int main(int argc, char *argv[])
 {
 #if CONFIG_APPHELLOWORLD_PRINTARGS || CONFIG_APPHELLOWORLD_SPINNER
        int i;
 #endif
+
        printf("Hello world!\n");
 
 #if CONFIG_APPHELLOWORLD_PRINTARGS
@@ -34,7 +35,7 @@ int main(int argc, char *argv[])
        for (i=0; i<argc; ++i)
                printf(" \"%s\"", argv[i]);
        printf("\n");
-#endif
+#endif /* CONFIG_APPHELLOWORLD_PRINTARGS */
 
 #if CONFIG_APPHELLOWORLD_SPINNER
        i = 0;
@@ -44,5 +45,5 @@ int main(int argc, char *argv[])
                printf("\r%s", spinner[i++]);
                sleep(1);
        }
-#endif
+#endif /* CONFIG_APPHELLOWORLD_SPINNER */
 }
-- 
2.20.1