Use more consistent style in dxr-index.cpp.
Use more consistent style in dxr-index.cpp.

Use consistent brace placement; move closer to 80-character columns.

(Erik restored a few deleted TODO comments as an amendment.)

jay-z007/dxr,pelmers/dxr,pombredanne/dxr,jay-z007/dxr,jay-z007/dxr,pombredanne/dxr,pombredanne/dxr,jbradberry/dxr,jbradberry/dxr,pelmers/dxr,kleintom/dxr,pelmers/dxr,kleintom/dxr,kleintom/dxr,kleintom/dxr,pombredanne/dxr,jbradberry/dxr,kleintom/dxr,jbradberry/dxr,jbradberry/dxr,jay-z007/dxr,pelmers/dxr,jay-z007/dxr,jay-z007/dxr,jay-z007/dxr,kleintom/dxr,jbradberry/dxr,pombredanne/dxr,pelmers/dxr,jbradberry/dxr,pombredanne/dxr,pelmers/dxr,pelmers/dxr,pombredanne/dxr,kleintom/dxr