* ggc-page.c: (ggc_pch_write_object) replace fseek() with fwrite()

  in PCH generation, avoiding
  too-frequent flushes when writing to NFS file system


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@72085 138bc75d-0d04-0410-961f-82ee72b054a4