tool/go: fix typo in comment

Updates #cleanup

Signed-off-by: Brad Fitzpatrick <[email protected]>

Author: bradfitz

tool/go

@@ -61,8 +61,8 @@ if [[ -z "${TOOLCHAINDIR}" ]]; then
         esac
     fi
 else
-    # fdroid supplies it's own toolchain, rather than using ours.
+    # fdroid supplies its own toolchain, rather than using ours.
     toolchain="${TOOLCHAINDIR}"
 fi
 
-exec "${toolchain}/bin/go" "$@"
+exec "${toolchain}/bin/go" "$@"