Improve format_size() doc comment

diff --git a/util.c b/util.c
index 5232fa4ae51cf3cea3180556587d9df39bd34581..0e63375e0e28bef5eae63c53cb0d4c538c5eeb66 100644 (file)
--- a/util.c
+++ b/util.c
@@ -709,7 +709,7 @@ int safe_open(const char *fname)
        return fd;
 }
 
-/* Format a size as a human-readable string. Caller frees. */
+/* Format a size (in KiB) as a human-readable string. Caller frees. */
 char *format_size(size_t v)
 {
        char *s;