R_Slave -> R_NoEcho for non-Windows
R_Slave -> R_NoEcho for non-Windows

(cherry picked from commit 3fb2397c2f208bb8ace0bbaf269481ccb96b5b20)

JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio