[PATCH] libtool: remove stray \ before -

[jspricke]

From: Jochen Sprickerhof <git@jochen.sprickerhof.de>

grep 3.8 emits a warning for this.
---
 m4/libtool.m4 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/m4/libtool.m4 b/m4/libtool.m4
index 79a2451e..23d093ba 100644
--- a/m4/libtool.m4
+++ b/m4/libtool.m4
@@ -6442,7 +6442,7 @@ if test yes != "$_lt_caught_CXX_error"; then
       # Commands to make compiler produce verbose output that lists
       # what "hidden" libraries, object files and flags are used when
       # linking a shared library.
-      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | 
$GREP -v "^Configured with:" | $GREP "\-L"'
+      output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | 
$GREP -v "^Configured with:" | $GREP "-L"'
 
     else
       GXX=no
-- 
2.37.2