Changes in off_io.C for -Wshadow.
Changes in off_io.C for -Wshadow.

Issue #24.

pbauman/libmesh,90jrong/libmesh,salazardetroya/libmesh,jiangwen84/libmesh,capitalaslash/libmesh,salazardetroya/libmesh,giorgiobornia/libmesh,jwpeterson/libmesh,markcmiller86/libmesh_silo,permcody/libmesh,90jrong/libmesh,karpeev/libmesh,markcmiller86/libmesh_silo,capitalaslash/libmesh,roystgnr/libmesh,balborian/libmesh,balborian/libmesh,jiangwen84/libmesh,giorgiobornia/libmesh,jwpeterson/libmesh,Mbewu/libmesh,roystgnr/libmesh,coreymbryant/libmesh,balborian/libmesh,pbauman/libmesh,libMesh/libmesh,aeslaughter/libmesh,benkirk/libmesh,coreymbryant/libmesh,coreymbryant/libmesh,Mbewu/libmesh,friedmud/libmesh,permcody/libmesh,BalticPinguin/libmesh,balborian/libmesh,coreymbryant/libmesh,balborian/libmesh,dmcdougall/libmesh,roystgnr/libmesh,karpeev/libmesh,dknez/libmesh,coreymbryant/libmesh,dknez/libmesh,dmcdougall/libmesh,BalticPinguin/libmesh,90jrong/libmesh,capitalaslash/libmesh,aeslaughter/libmesh,dmcdougall/libmesh,svallaghe/libmesh,cahaynes/libmesh,dschwen/libmesh,BalticPinguin/libmesh,vikramvgarg/libmesh,balborian/libmesh,markcmiller86/libmesh_silo,pbauman/libmesh,coreymbryant/libmesh,balborian/libmesh,Mbewu/libmesh,dschwen/libmesh,dmcdougall/libmesh,karpeev/libmesh,giorgiobornia/libmesh,aeslaughter/libmesh,friedmud/libmesh,jiangwen84/libmesh,pbauman/libmesh,BalticPinguin/libmesh,libMesh/libmesh,90jrong/libmesh,benkirk/libmesh,markcmiller86/libmesh_silo,markcmiller86/libmesh_silo,friedmud/libmesh,pbauman/libmesh,dmcdougall/libmesh,capitalaslash/libmesh,balborian/libmesh,jiangwen84/libmesh,hrittich/libmesh,dmcdougall/libmesh,libMesh/libmesh,dschwen/libmesh,permcody/libmesh,giorgiobornia/libmesh,roystgnr/libmesh,friedmud/libmesh,svallaghe/libmesh,jwpeterson/libmesh,pbauman/libmesh,dknez/libmesh,markcmiller86/libmesh_silo,dknez/libmesh,svallaghe/libmesh,giorgiobornia/libmesh,pbauman/libmesh,benkirk/libmesh,vikramvgarg/libmesh,pbauman/libmesh,aeslaughter/libmesh,hrittich/libmesh,jwpeterson/libmesh,benkirk/libmesh,dknez/libmesh,90jrong/libmesh,cahaynes/libmesh,hrittich/libmesh,salazardetroya/libmesh,dmcdougall/libmesh,jwpeterson/libmesh,salazardetroya/libmesh,jiangwen84/libmesh,karpeev/libmesh,dknez/libmesh,coreymbryant/libmesh,karpeev/libmesh,svallaghe/libmesh,aeslaughter/libmesh,libMesh/libmesh,hrittich/libmesh,vikramvgarg/libmesh,libMesh/libmesh,markcmiller86/libmesh_silo,dknez/libmesh,90jrong/libmesh,friedmud/libmesh,dschwen/libmesh,Mbewu/libmesh,Mbewu/libmesh,capitalaslash/libmesh,cahaynes/libmesh,friedmud/libmesh,benkirk/libmesh,hrittich/libmesh,dschwen/libmesh,friedmud/libmesh,cahaynes/libmesh,dknez/libmesh,hrittich/libmesh,jwpeterson/libmesh,dschwen/libmesh,dschwen/libmesh,jiangwen84/libmesh,Mbewu/libmesh,svallaghe/libmesh,roystgnr/libmesh,permcody/libmesh,aeslaughter/libmesh,roystgnr/libmesh,svallaghe/libmesh,BalticPinguin/libmesh,vikramvgarg/libmesh,karpeev/libmesh,90jrong/libmesh,vikramvgarg/libmesh,giorgiobornia/libmesh,giorgiobornia/libmesh,permcody/libmesh,svallaghe/libmesh,friedmud/libmesh,dschwen/libmesh,salazardetroya/libmesh,Mbewu/libmesh,salazardetroya/libmesh,hrittich/libmesh,friedmud/libmesh,markcmiller86/libmesh_silo,balborian/libmesh,jwpeterson/libmesh,roystgnr/libmesh,balborian/libmesh,BalticPinguin/libmesh,benkirk/libmesh,vikramvgarg/libmesh,permcody/libmesh,benkirk/libmesh,giorgiobornia/libmesh,svallaghe/libmesh,90jrong/libmesh,jiangwen84/libmesh,salazardetroya/libmesh,BalticPinguin/libmesh,libMesh/libmesh,salazardetroya/libmesh,karpeev/libmesh,hrittich/libmesh,benkirk/libmesh,vikramvgarg/libmesh,aeslaughter/libmesh,pbauman/libmesh,giorgiobornia/libmesh,benkirk/libmesh,Mbewu/libmesh,BalticPinguin/libmesh,capitalaslash/libmesh,svallaghe/libmesh,dmcdougall/libmesh,aeslaughter/libmesh,cahaynes/libmesh,capitalaslash/libmesh,jwpeterson/libmesh,90jrong/libmesh,cahaynes/libmesh,roystgnr/libmesh,vikramvgarg/libmesh,libMesh/libmesh,jiangwen84/libmesh,hrittich/libmesh,Mbewu/libmesh,karpeev/libmesh,permcody/libmesh,cahaynes/libmesh,libMesh/libmesh,aeslaughter/libmesh,vikramvgarg/libmesh,coreymbryant/libmesh,permcody/libmesh,capitalaslash/libmesh,cahaynes/libmesh