[librsvg] rsvg_make_valid_utf8(): Take a "gssize len", like glib functions do

[Federico Mena Quintero <federico src gnome org>]

commit 6226cb05e3ab1ddc4f8eede5449d823faab48bf9
Author: Federico Mena Quintero <federico gnome org>
Date:   Tue Dec 5 16:10:01 2017 -0600

    rsvg_make_valid_utf8(): Take a "gssize len", like glib functions do

 rsvg-text.c |    4 ++--
 rsvg-text.h |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)
---
diff --git a/rsvg-text.c b/rsvg-text.c
index 7adba02..3c20e39 100644
--- a/rsvg-text.c
+++ b/rsvg-text.c
@@ -52,11 +52,11 @@ struct _RsvgNodeTref {
 };
 
 char *
-rsvg_make_valid_utf8 (const char *str, int len)
+rsvg_make_valid_utf8 (const char *str, gssize len)
 {
     GString *string;
     const char *remainder, *invalid;
-    int remaining_bytes, valid_bytes;
+    gssize remaining_bytes, valid_bytes;
 
     string = NULL;
     remainder = str;
diff --git a/rsvg-text.h b/rsvg-text.h
index e43b560..d30bac0 100644
--- a/rsvg-text.h
+++ b/rsvg-text.h
@@ -39,7 +39,7 @@ RsvgNode    *rsvg_new_tspan       (const char *element_name, RsvgNode *parent);
 G_GNUC_INTERNAL
 RsvgNode    *rsvg_new_tref         (const char *element_name, RsvgNode *parent);
 G_GNUC_INTERNAL
-char       *rsvg_make_valid_utf8   (const char *str, int len);
+char       *rsvg_make_valid_utf8   (const char *str, gssize len);
 
 G_END_DECLS