New line separator in iterations error

Add new line separator at the end of iterations error. This fixes command prompt displaying on same line as this error message when zopfli exists - linux terminal.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/zopfli/zopfli_bin.c b/src/zopfli/zopfli_bin.c
index dc4809d..e7ea444 100644
--- a/src/zopfli/zopfli_bin.c
+++ b/src/zopfli/zopfli_bin.c
@@ -184,7 +184,7 @@ int main(int argc, char* argv[]) {
   }
 
   if (options.numiterations < 1) {
-    fprintf(stderr, "Error: must have 1 or more iterations");
+    fprintf(stderr, "Error: must have 1 or more iterations\n");
     return 0;
   }