[latexila] PostProcessorLatex: avoid warning message

[Sébastien Wilmet <swilmet src gnome org>]

commit 19145bc35871dee9471166a86624389328115787
Author: Sébastien Wilmet <swilmet gnome org>
Date:   Tue Feb 7 19:00:06 2017 +0100

    PostProcessorLatex: avoid warning message
    
    g_return_if_reached() was called (falls through) for the case
    STATE_FILENAME.
    
    Found by Coverity.

 src/liblatexila/latexila-post-processor-latex.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/src/liblatexila/latexila-post-processor-latex.c b/src/liblatexila/latexila-post-processor-latex.c
index 569071f..764d402 100644
--- a/src/liblatexila/latexila-post-processor-latex.c
+++ b/src/liblatexila/latexila-post-processor-latex.c
@@ -1337,6 +1337,7 @@ update_stack_file (LatexilaPostProcessorLatex *pp,
           append_to_filename_buffer (pp, line_stripped);
           g_free (line_stripped);
         }
+      break;
 
     case STATE_BADBOX:
     case STATE_WARNING: