updated for version 7.4.456
Problem:    'backupcopy' is global, cannot write only some files in a
            different way.
Solution:   Make 'backupcopy' global-local. (Christian Brabandt)
diff --git a/src/structs.h b/src/structs.h
index 441fcaa..d241753 100644
--- a/src/structs.h
+++ b/src/structs.h
@@ -137,7 +137,7 @@
 #ifdef FEAT_LINEBREAK
     int		wo_bri;
 # define w_p_bri w_onebuf_opt.wo_bri	/* 'breakindent' */
-    char_u		*wo_briopt;
+    char_u	*wo_briopt;
 # define w_p_briopt w_onebuf_opt.wo_briopt /* 'breakindentopt' */
 #endif
 #ifdef FEAT_DIFF
@@ -1537,6 +1537,8 @@
 
     int		b_p_ai;		/* 'autoindent' */
     int		b_p_ai_nopaste;	/* b_p_ai saved for paste mode */
+    char_u	*b_p_bkc;	/* 'backupcopy' */
+    unsigned	b_bkc_flags;    /* flags for 'backupcopy' */
     int		b_p_ci;		/* 'copyindent' */
     int		b_p_bin;	/* 'binary' */
 #ifdef FEAT_MBYTE