Convert code_sign_if_enabled call to single quotes

lib/cocoapods/generator/embed_frameworks_script.rb

@@ -77,7 +77,7 @@ module Pod
             fi
 
             # Resign the code if required by the build settings to avoid unstable apps
-            code_sign_if_enabled "\"${destination}/$(basename "$1")\""
+            code_sign_if_enabled "${destination}/$(basename "$1")"
 
             # Embed linked Swift runtime libraries. No longer necessary as of Xcode 7.
             if [ "${XCODE_VERSION_MAJOR}" -lt 7 ]; then
@@ -96,7 +96,7 @@ module Pod
             if [ -n "${EXPANDED_CODE_SIGN_IDENTITY}" -a "${CODE_SIGNING_REQUIRED}" != "NO" -a "${CODE_SIGNING_ALLOWED}" != "NO" ]; then
               # Use the current code_sign_identitiy
               echo "Code Signing $1 with Identity ${EXPANDED_CODE_SIGN_IDENTITY_NAME}"
-              local code_sign_cmd="/usr/bin/codesign --force --sign ${EXPANDED_CODE_SIGN_IDENTITY} ${OTHER_CODE_SIGN_FLAGS} --preserve-metadata=identifier,entitlements \\"$1\\""
+              local code_sign_cmd="/usr/bin/codesign --force --sign ${EXPANDED_CODE_SIGN_IDENTITY} ${OTHER_CODE_SIGN_FLAGS} --preserve-metadata=identifier,entitlements '$1'"
 
               if [ "${COCOAPODS_PARALLEL_CODE_SIGN}" == "true" ]; then
                 code_sign_cmd="$code_sign_cmd &"