[librsvg] Add missing newlines to a couple of rsvg-convert error messages

[Federico Mena Quintero <federico src gnome org>]

commit 1a35920796f72ee39c3b99cd56c94de68f8fbfd2
Author: Federico Mena Quintero <federico gnome org>
Date:   Mon Jan 13 20:12:20 2020 -0600

    Add missing newlines to a couple of rsvg-convert error messages

 rsvg-convert.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/rsvg-convert.c b/rsvg-convert.c
index 83b2df0f..ba044287 100644
--- a/rsvg-convert.c
+++ b/rsvg-convert.c
@@ -535,7 +535,7 @@ main (int argc, char **argv)
 #endif
 #endif
             else {
-                g_printerr (_("Unknown output format."));
+                g_printerr (_("Unknown output format.\n"));
                 exit (1);
             }
 
@@ -550,7 +550,7 @@ main (int argc, char **argv)
             if (spec.kind == RSVG_CSS_COLOR_SPEC_ARGB) {
                 background_color = spec.argb;
             } else {
-                g_printerr (_("Invalid color specification."));
+                g_printerr (_("Invalid color specification.\n"));
                 exit (1);
             }