The SBBSNODE env variable (if it exists) specifies a path to search

for dropfiles.

src/odoors/ODInEx2.c

@@ -106,6 +106,7 @@ static char *apszEnvVarNames[] =
    "PCB",
    "BBS",
    "WCNODEID",
+   "SBBSNODE",
 };
 #define NUM_DIR_ENV_VARS DIM(apszEnvVarNames)