Fix some more rebase error

Author: tiif

src/tools/miri/src/shims/unix/foreign_items.rs

@@ -144,6 +144,12 @@ pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
                 let result = this.getpid()?;
                 this.write_scalar(result, dest)?;
             }
+            "sysconf" => {
+                let [val] =
+                    this.check_shim(abi, Conv::C, link_name, args)?;
+                let result = this.sysconf(val)?;
+                this.write_scalar(result, dest)?;
+            }
             // File descriptors
             "read" => {
                 let [fd, buf, count] = this.check_shim(abi, Conv::C , link_name, args)?;