os: support %% in pnprintf

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Keith Packard <keithp@keithp.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/os/log.c b/os/log.c
index df025fbca..e4e9e8b9d 100644
--- a/os/log.c
+++ b/os/log.c
@@ -450,6 +450,9 @@ pnprintf(char *string, size_t size, const char *f, va_list args)
                     string[s_idx++] = number[i];
             }
             break;
+        case '%':
+            string[s_idx++] = '%';
+            break;
         default:
             va_arg(args, char*);
             string[s_idx++] = '%';