Do explicit cast to suppress clang warning
Do explicit cast to suppress the below clang warning,
../src/mesa/main/get.c:86:31: warning: implicit conversion from 'int' to 'float' changes value from 2147483647 to 2147483648 [-Wimplicit-const-int-float-conversion]
Signed-off-by: Vignesh Raman vignesh.raman@collabora.com