Uncrustified src/sys/*

Hg-commit: 9f71677807bad7b55428a6cc0f5ccc5052e91805

changed PetscMPIIntCast() to return an error code

Hg-commit: 73696a6c6bf0120a669678ed7c25e3c7bd451960

Reformatted: "Do not put a blank line immediately before PetscFunctionReturn;"

Hg-commit: c8a41c455986e732d0ea0513d7162a54daffaece

generally SETERRQXX does not belong on its own line
also fixed formatting issues in dgmres.c (ugh)

Hg-commit: e3fffdf67cd55655a36785a0abc7c197e98ca7cd

if, for, while, switch now have consistently a space prior to the opening parenthesis.

Hg-commit: cf69a5905ee4efb938b2bdd2762f87854175a6c5

Fixed all violations of 'In function declaration the open bracket { should be on the next line, not on the same line as the function name and arguments'

Hg-commit: dcf94e40c4cd63bca3cd717b13d3be0d4e

Fixed all violations of 'In function declaration the open bracket { should be on the next line, not on the same line as the function name and arguments'

Hg-commit: dcf94e40c4cd63bca3cd717b13d3be0d4ebc15eb

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silly code formatting problems; some people still need to read the style guide

Hg-commit: 7a98cb06baf90914d565ea8801b6900bdc5a04c1