lib: missing fallthrough comment in vsnprintf_internal()

When a case statement intentionally falls through we should add a comment.
Cf. -Wimplicit-fallthrough

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 2d13e68..e87503e 100644 (file)
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -674,6 +674,7 @@ repeat:
 
                case 'x':
                        flags |= SMALL;
+               /* fallthrough */
                case 'X':
                        base = 16;
                        break;
@@ -681,8 +682,10 @@ repeat:
                case 'd':
                        if (fmt[1] == 'E')
                                flags |= ERRSTR;
+               /* fallthrough */
                case 'i':
                        flags |= SIGN;
+               /* fallthrough */
                case 'u':
                        break;