(Fsleep_for): Don't return without waiting when SEC is 0.

diff --git a/src/dispnew.c b/src/dispnew.c
index 1766561515cac5370388d0e390640c11374deb5f..4dde895240b559db488eee0dbb397cff2d2151c3 100644 (file)
--- a/src/dispnew.c
+++ b/src/dispnew.c
@@ -1852,7 +1852,7 @@ Emacs was built without floating point support.\n\
   else
     sec += usec / 1000000, usec %= 1000000;
 
-  if (sec <= 0)
+  if (sec < 0)
     return Qnil;
 
   {