dfs.c: delete the redunant space in the line end.
dfs_fs.c: optimized redundant loop.
strip more characters in finsh token
Merge pull request #78 from BernardXiong/master

strip more characters in finsh token.
Merge pull request #70 from geniusgogo/dfs-fixbug

Dfs clean and optimized code
fix the wrong strcpy issue in list() function
fix compiling warning in finsh shell
Merge pull request #79 from weety/at91sam9260

Use SRAM as EMAC transmit buffer, to avoid the underrun error, especiall...