[libxml2] relaxng.c, xmlschemas.c: Fix build on pre-C99 compilers

[Chun-wei Fan <fanchunwei src gnome org>]

commit d77e5fc4bcdb7da748c9cca116a601ae4df60d21
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Tue May 31 21:04:50 2016 +0800

    relaxng.c, xmlschemas.c: Fix build on pre-C99 compilers
    
    Make sure that the variables are declared at the top of the block.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=767063

 relaxng.c    |    3 ++-
 xmlschemas.c |    2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/relaxng.c b/relaxng.c
index 56a3344..3d3e69c 100644
--- a/relaxng.c
+++ b/relaxng.c
@@ -2088,6 +2088,7 @@ xmlRelaxNGGetErrorString(xmlRelaxNGValidErr err, const xmlChar * arg1,
                          const xmlChar * arg2)
 {
     char msg[1000];
+    xmlChar *result;
 
     if (arg1 == NULL)
         arg1 = BAD_CAST "";
@@ -2215,7 +2216,7 @@ xmlRelaxNGGetErrorString(xmlRelaxNGValidErr err, const xmlChar * arg1,
         snprintf(msg, 1000, "Unknown error code %d\n", err);
     }
     msg[1000 - 1] = 0;
-    xmlChar *result = xmlCharStrdup(msg);
+    result = xmlCharStrdup(msg);
     return (xmlEscapeFormatString(&result));
 }
 
diff --git a/xmlschemas.c b/xmlschemas.c
index e1b3a4f..7afe2eb 100644
--- a/xmlschemas.c
+++ b/xmlschemas.c
@@ -3168,8 +3168,8 @@ xmlSchemaPSimpleTypeErr(xmlSchemaParserCtxtPtr ctxt,
                "valid.");
        }
        if (expected) {
-           msg = xmlStrcat(msg, BAD_CAST " Expected is '");
            xmlChar *expectedEscaped = xmlCharStrdup(expected);
+           msg = xmlStrcat(msg, BAD_CAST " Expected is '");
            msg = xmlStrcat(msg, xmlEscapeFormatString(&expectedEscaped));
            FREE_AND_NULL(expectedEscaped);
            msg = xmlStrcat(msg, BAD_CAST "'.\n");