Simplify expand_variables $script creation syntax

src/include/build.sh

@@ -176,21 +176,23 @@ expand_variables() {
     #
     local script=$(mktemp --tmpdir mkit-tmp.XXXXXXXXXX)
     local section varname varvalue
-    for section in "$@";
-    do
-        debug_var section
-        ini lskeys "$section" \
-          | while read varname;
-            do
-                varvalue="$(ini 1value "$section:$varname" | sed -e 's/\$/\\$/' )"
-                echo "s|$varname|$varvalue|;" >> "$script"
-                debug_var varname varvalue
-            done
-    done
-    echo "s|__MKIT_PROJ_CODENAME__|$(ini 1value project:codename)|;" >> "$script"
-    echo "s|__MKIT_PROJ_PKGNAME__|$(ini 1value project:pkgname)|;" >> "$script"
-    echo "s|__MKIT_PROJ_TAGLINE__|$(ini 1value project:tagline)|;" >> "$script"
-    echo "s|__MKIT_PROJ_VERSION__|$(get_version)|;" >> "$script"
+    {
+        for section in "$@";
+        do
+            debug_var section
+            ini lskeys "$section" \
+              | while read varname;
+                do
+                    varvalue="$(ini 1value "$section:$varname" | sed -e 's/\$/\\$/' )"
+                    echo "s|$varname|$varvalue|;"
+                    debug_var varname varvalue
+                done
+        done
+        echo "s|__MKIT_PROJ_CODENAME__|$(ini 1value project:codename)|;"
+        echo "s|__MKIT_PROJ_PKGNAME__|$(ini 1value project:pkgname)|;"
+        echo "s|__MKIT_PROJ_TAGLINE__|$(ini 1value project:tagline)|;"
+        echo "s|__MKIT_PROJ_VERSION__|$(get_version)|;"
+    } >> "$script"
     perl -wp "$script" || die "expand_variables failed"
     rm "$script"
 }