Remove trailing white space with:

 for f in *.{h,c}; do sed -i .sed 's/[[:blank:]]*$//' $f; done
(Thanks to Nicolás Wolovick)

1 files changed, 3 insertions, 3 deletions

diff --git a/bio.c b/bio.c
index 629bb2c..6c19a64 100644
--- a/bio.c
+++ b/bio.c
@@ -4,7 +4,7 @@
 // cached copies of disk block contents.  Caching disk blocks
 // in memory reduces the number of disk reads and also provides
 // a synchronization point for disk blocks used by multiple processes.
-// 
+//
 // Interface:
 // * To get a buffer for a particular disk block, call bread.
 // * After changing buffer data, call bwrite to write it to disk.
@@ -12,10 +12,10 @@
 // * Do not use the buffer after calling brelse.
 // * Only one process at a time can use a buffer,
 //     so do not keep them longer than necessary.
-// 
+//
 // The implementation uses three state flags internally:
 // * B_BUSY: the block has been returned from bread
-//     and has not been passed back to brelse.  
+//     and has not been passed back to brelse.
 // * B_VALID: the buffer data has been read from the disk.
 // * B_DIRTY: the buffer data has been modified
 //     and needs to be written to disk.