support/download/{curl, cvs, git, svn}: disable new shellcheck 0.9.0 errors

As for SC1090 and SC2016 [1], disable SC1091 and SC2294 too since they
are now reported by shellcheck 0.9.0:

In support/download/curl line 42:
    eval ${CURL} "${@}"
                  ^--^ SC2294 (warning): eval negates the benefit of arrays. Drop eval to preserve whitespace/symbols (or eval as string).

[1] bcee3ca6d6

Signed-off-by: Romain Naour <romain.naour@smile.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

support/download/curl

@@ -39,6 +39,7 @@ _curl() {
 # Note: please keep command below aligned with what is printed above
 _plain_curl() {
     # shellcheck disable=SC2086  # We want splitting
+    # shellcheck disable=SC2294
     eval ${CURL} "${@}"
 }
 

support/download/cvs

@@ -47,6 +47,7 @@ _cvs() {
 # Note: please keep command below aligned with what is printed above
 _plain_cvs() {
     # shellcheck disable=SC2086  # We really want word splitting in CVS
+    # shellcheck disable=SC2294
     eval timeout 10m ${CVS} "${@}"
 }
 

support/download/git

@@ -22,6 +22,7 @@ set -e
 #   GIT      : the git command to call
 
 # shellcheck disable=SC1090 # Only provides mk_tar_gz()
+# shellcheck disable=SC1091
 . "${0%/*}/helpers"
 
 # Save our path and options in case we need to call ourselves again
@@ -91,6 +92,7 @@ _git() {
 # Note: please keep command below aligned with what is printed above
 _plain_git() {
     # shellcheck disable=SC2086 # We want word-splitting for GIT
+    # shellcheck disable=SC2294
     eval GIT_DIR="${git_cache}/.git" ${GIT} "${@}"
 }
 

support/download/svn

@@ -22,6 +22,7 @@ set -e
 #   SVN      : the svn command to call
 
 # shellcheck disable=SC1090 # Only provides mk_tar_gz()
+# shellcheck disable=SC1091
 . "${0%/*}/helpers"
 
 quiet=
@@ -52,6 +53,7 @@ _svn() {
 # Note: please keep command below aligned with what is printed above
 _plain_svn() {
     # shellcheck disable=SC2086 # We want word-splitting for SVN
+    # shellcheck disable=SC2294
     eval ${SVN} "${@}"
 }