Unify shell substitution usage

diff --git a/c/cmd/pub-verify/conf/gcl3.rc.do b/c/cmd/pub-verify/conf/gcl3.rc.do
index eeb9168f3734c4dd1eef08c8075ff2daffec6edc6c3643cf152cabd0d4a06689..7e34c0598f16e448b1113364e5bac74f11df4d62f0acf263c9657f9a71be998a 100644 (file)
--- a/c/cmd/pub-verify/conf/gcl3.rc.do
+++ b/c/cmd/pub-verify/conf/gcl3.rc.do
@@ -1,4 +1,4 @@
-PKGCONF=${PKGCONF:-`command -v pkgconf || command -v pkg-config`}
+PKGCONF=${PKGCONF:-$(command -v pkgconf || command -v pkg-config)}
 cat <<EOF
 {
     read GCL3_CFLAGS

diff --git a/c/cmd/pub-verify/conf/monocypher.rc.do b/c/cmd/pub-verify/conf/monocypher.rc.do
index c00f8315a472da7f7a6648c95d651202783c044f1844b1c3f73f85a661a7123d..f0261d5700982c57dbd60f72bedec66486b63a6b1bb54712216e8257ab4d18b6 100644 (file)
--- a/c/cmd/pub-verify/conf/monocypher.rc.do
+++ b/c/cmd/pub-verify/conf/monocypher.rc.do
@@ -1,5 +1,5 @@
 # https://monocypher.org/
-PKGCONF=${PKGCONF:-`command -v pkgconf || command -v pkg-config`}
+PKGCONF=${PKGCONF:-$(command -v pkgconf || command -v pkg-config)}
 cat <<EOF
 {
     read MONOCYPHER_CFLAGS

diff --git a/c/t/conf/tap.rc.do b/c/t/conf/tap.rc.do
index 114257b94a02a810afd465799e740472f05ad72aa176b7c47c1d332c1d3cb844..1f694097a56798e6e7af512744e59c426008251bb53ad6495699c10bc8d6ead8 100644 (file)
--- a/c/t/conf/tap.rc.do
+++ b/c/t/conf/tap.rc.do
@@ -1,4 +1,4 @@
-PKGCONF=${PKGCONF:-`command -v pkgconf || command -v pkg-config`}
+PKGCONF=${PKGCONF:-$(command -v pkgconf || command -v pkg-config)}
 cat <<EOF
 {
     read TAP_CFLAGS