Fixed bug in error_vector.C where it returned 1e+30 for a vector of all zeros.
Fixed bug in error_vector.C where it returned 1e+30 for a vector
of all zeros.


git-svn-id: ffc1bc5b3feaf8644044862cc38c386ade156493@728 434f946d-2f3d-0410-ba4c-cb9f52fb0dbf

certik/libmesh,certik/libmesh,certik/libmesh,certik/libmesh,certik/libmesh,certik/libmesh,certik/libmesh