Coverity analysis defect 121385: Missing varargs init or cleanup

Missing varargs init or cleanup

Memory may be corrupted by forgetting to begin and end variable argument processing. Incorrect usage of variable argument macros; use va_start or va_copy to begin processing and va_end to finish
/src/cursor/cur_version.c:96: VARARGS 121385 Initializing va_list "ap".
/src/cursor/cur_version.c:117: VARARGS 121385 "va_end" was not called for "ap".