Appease gcc warning about multi-line comments.
Appease gcc warning about multi-line comments.

poljere/OpenSubdiv,xldeveloper/OpenSubdiv,xldeveloper/OpenSubdiv,nyotis/OpenSubdiv,takahito-tejima/OpenSubdiv,c64kernal/OpenSubdiv,anshuarya/OpenSubdiv,anshuarya/OpenSubdiv,poljere/OpenSubdiv,lookup1980/OpenSubdiv,shengfuintel/OpenSubdiv,poljere/OpenSubdiv,takahito-tejima/OpenSubdiv,c64kernal/OpenSubdiv,xldeveloper/OpenSubdiv,c64kernal/OpenSubdiv,shengfuintel/OpenSubdiv,shengfuintel/OpenSubdiv,lookup1980/OpenSubdiv,takahito-tejima/OpenSubdiv,lookup1980/OpenSubdiv,nyotis/OpenSubdiv,anshuarya/OpenSubdiv,nyotis/OpenSubdiv