[easytag] Add static to is_tag_ape2long()

[David King <davidk src gnome org>]

commit 257e13b1b3309919e73cf6f3014a77f5f82e87f8
Author: David King <amigadave amigadave com>
Date:   Thu Jan 28 21:51:44 2016 +0100

    Add static to is_tag_ape2long()

 src/tags/libapetag/is_tag.c |   26 +++++++++++---------------
 1 files changed, 11 insertions(+), 15 deletions(-)
---
diff --git a/src/tags/libapetag/is_tag.c b/src/tags/libapetag/is_tag.c
index 7ba9bb4..452c77c 100644
--- a/src/tags/libapetag/is_tag.c
+++ b/src/tags/libapetag/is_tag.c
@@ -27,14 +27,22 @@
 #include <assert.h>
 #include "is_tag.h"
 
-unsigned long
-is_tag_ape2long (unsigned char *p);
-
 /*
     PL: czy dany plik ma taga odpowiednio id3v1, id3v2 i ape ???
     PL: nie zmienia pozycji w pliku !!!
 */
 
+static unsigned long
+is_tag_ape2long (unsigned char *p)
+{
+
+    return (((unsigned long) p[0] << 0)  |
+            ((unsigned long) p[1] << 8)  |
+            ((unsigned long) p[2] << 16) |
+            ((unsigned long) p[3] << 24) );
+
+}
+
 /** 
     return size of all id3v1 tags (some bugy tagers add this again and 
     again tag) 0 no tag at all 
@@ -174,15 +182,3 @@ is_ape (FILE * fp)
         ) /* footer size = 32 */
         );
 }
-
-
-unsigned long
-is_tag_ape2long (unsigned char *p)
-{
-
-    return (((unsigned long) p[0] << 0)  |
-            ((unsigned long) p[1] << 8)  |
-            ((unsigned long) p[2] << 16) |
-            ((unsigned long) p[3] << 24) );
-
-}