[RT #36079] Convert ` to '.

diff --git a/Porting/bisect-runner.pl b/Porting/bisect-runner.pl
index 496e7b9..c844a98 100755 (executable)
--- a/Porting/bisect-runner.pl
+++ b/Porting/bisect-runner.pl
@@ -1424,7 +1424,7 @@ case "$osvers" in
                cccdlflags="-DPIC -fPIC $cccdlflags"
                lddlflags="--whole-archive -shared $lddlflags"
        elif [ "`uname -m`" = "pmax" ]; then
-# NetBSD 1.3 and 1.3.1 on pmax shipped an `old' ld.so, which will not work.
+# NetBSD 1.3 and 1.3.1 on pmax shipped an 'old' ld.so, which will not work.
                d_dlopen=$undef
        elif [ -f /usr/libexec/ld.so ]; then
                d_dlopen=$define