Update src/qt/guiutil.cpp
Update src/qt/guiutil.cpp

Add escape characters.

Co-authored-by: Cy Rossignol <31ace4ad1831aae866cd7951a842ca3e38f21981@rossignols.me>
gridcoin/Gridcoin-Research,theMarix/Gridcoin-Research,theMarix/Gridcoin-Research,theMarix/Gridcoin-Research,Git-Jiro/Gridcoin-Research,caraka/gridcoinresearch,caraka/gridcoinresearch,caraka/gridcoinresearch,gridcoin/Gridcoin-Research,caraka/gridcoinresearch,Git-Jiro/Gridcoin-Research,Git-Jiro/Gridcoin-Research,gridcoin/Gridcoin-Research,theMarix/Gridcoin-Research,gridcoin/Gridcoin-Research,gridcoin/Gridcoin-Research,Git-Jiro/Gridcoin-Research,caraka/gridcoinresearch,gridcoin/Gridcoin-Research,caraka/gridcoinresearch,theMarix/Gridcoin-Research,theMarix/Gridcoin-Research,Git-Jiro/Gridcoin-Research