Use grep -F instead of fgrep

Co-authored-by: Remi Gacogne <github@coredump.fr>
(cherry picked from commit 57b7a0093ad46ecc50e79c0f8631e98570d72ea2)

diff --git a/builder-support/helpers/install_quiche.sh b/builder-support/helpers/install_quiche.sh
index 830c076f4803f19026258a0aa3e9e090a966955a..88015119afd0e69d6c15716abf89eebfd0391ec4 100755 (executable)
--- a/builder-support/helpers/install_quiche.sh
+++ b/builder-support/helpers/install_quiche.sh
@@ -35,7 +35,7 @@ RUST_BACKTRACE=1 cargo build --release --no-default-features --features ffi,bori
 # packaged rustc puts it in anyway.
 # See (https://sources.debian.org/patches/rustc/1.85.0%2Bdfsg2-3/behaviour/d-rustc-add-soname.patch/).
 # So if it is present, patch it to the correct name.
-if objdump -p target/release/libquiche.${SOEXT} | fgrep -q SONAME
+if objdump -p target/release/libquiche.${SOEXT} | grep -F -q SONAME
 then
   patchelf --set-soname libdnsdist-quiche.so target/release/libquiche.${SOEXT}
 fi