mapserver fails loading a shapefile if it has a dot in its name

[tbonfort]

 DATA "TM_WORLD_BORDERS_SIMPL-0.3"

fails to load because the shapefile has a dot in its name, and is considered as a file with a ".3" extension, rather than a reference to TM_WORLD_BORDERS_SIMPL-0.3.shp

code in question is in mapshape.c (circa line 238):

for( i = strlen(pszBasename)-1; 
       i > 0 && pszBasename[i] != '.' && pszBasename[i] != '/' && pszBasename[i] != '\\';
       i-- ) {}