git-p4: Unset P4DIFF environment variable when using 'p4 -du diff'

diff --git a/interpolate.h b/interpolate.h
index 16a26b998699a8a5a5b3472f4b57a574a292beef..77407e67dca97eb85274c69e2e7469e1d4d40b3b 100644 (file)
--- a/interpolate.h
+++ b/interpolate.h
@@ -19,8 +19,8 @@ struct interp {
 extern void interp_set_entry(struct interp *table, int slot, const char *value);
 extern void interp_clear_table(struct interp *table, int ninterps);
 
-extern int interpolate(char *result, int reslen,
-                      const char *orig,
-                      const struct interp *interps, int ninterps);
+extern unsigned long interpolate(char *result, unsigned long reslen,
+                                const char *orig,
+                                const struct interp *interps, int ninterps);
 
 #endif /* INTERPOLATE_H */