Merge pull request #100 from AppleCommander/optimize-for-size

Optimizing executable for size.

tools/bt/build.gradle

@@ -52,6 +52,7 @@ graalvmNative {
     binaries {
         named("main") {
             imageName.set("bt-${osName}-${osArch}-${project.version}")
+            buildArgs.add('-Os')
         }
     }
 }

tools/st/build.gradle

@@ -53,6 +53,7 @@ graalvmNative {
     binaries {
         named("main") {
             imageName.set("st-${osName}-${osArch}-${project.version}")
+            buildArgs.add('-Os')
         }
     }
 }