fix libtool filter for Fujitsu compilers (#34916)

Since legit regular expressions are matched, do not pass string=True
to the filter

Refs #34897

lib/spack/spack/build_systems/autotools.py

@@ -427,15 +427,15 @@ def _do_patch_libtool(self):
             x.filter(regex="-nostdlib", repl="", string=True)
             rehead = r"/\S*/"
             for o in [
-                "fjhpctag.o",
-                "fjcrt0.o",
-                "fjlang08.o",
-                "fjomp.o",
-                "crti.o",
-                "crtbeginS.o",
-                "crtendS.o",
+                r"fjhpctag\.o",
+                r"fjcrt0\.o",
+                r"fjlang08\.o",
+                r"fjomp\.o",
+                r"crti\.o",
+                r"crtbeginS\.o",
+                r"crtendS\.o",
             ]:
-                x.filter(regex=(rehead + o), repl="", string=True)
+                x.filter(regex=(rehead + o), repl="")
         elif self.pkg.compiler.name == "dpcpp":
             # Hack to filter out spurious predep_objects when building with Intel dpcpp
             # (see https://github.com/spack/spack/issues/32863):