Use isspace instead of isblank, since the latter is not available on the build system.
Use isspace instead of isblank, since the latter is not available on the build system.

git-svn-id: a739a095880fa3ebc46f89d9df64e20166cf4ba9@1689 70169cfe-8b10-0410-8925-dcb4b91034d8

sttts/gwenhywfar,sttts/gwenhywfar,sttts/gwenhywfar