Fix the type in set_errcall. Addresses #246.

git-svn-id: file:///svn/tokudb@1530 c7de825b-a66e-492c-adef-691d508d4ae1

buildheader/sample_offsets_64_4_3.h

@@ -14,7 +14,7 @@ struct fieldinfo db_env_fields64[] = {
   {"void (*err) (const DB_ENV *, int, const char *, ...)", 480, 8},
   {"int  (*open) (DB_ENV *, const char *, u_int32_t, int)", 496, 8},
   {"int  (*set_data_dir) (DB_ENV *, const char *)", 576, 8},
-  {"void (*set_errcall) (DB_ENV *, void (*)(DB_ENV *, const char *, const char *))", 600, 8},
+  {"void (*set_errcall) (DB_ENV *, void (*)(const DB_ENV *, const char *, const char *))", 600, 8},
   {"void (*set_errfile) (DB_ENV *, FILE*)", 616, 8},
   {"void (*set_errpfx) (DB_ENV *, const char *)", 632, 8},
   {"int (*get_flags) (DB_ENV *, u_int32_t *)", 648, 8},