Role needed stringi back to 1.1.7

Author: hadley

DESCRIPTION

@@ -19,7 +19,7 @@ Depends:
 Imports: 
     glue (>= 1.2.0),
     magrittr,
-    stringi (>= 1.2.2)
+    stringi (>= 1.1.7)
 Suggests: 
     covr,
     htmltools,

tests/testthat/test-match.r

@@ -10,6 +10,8 @@ phones <- str_c(
   num[, 7], num[, 8], num[, 9], num[, 10])
 
 test_that("empty strings return correct matrix of correct size", {
+  skip_if_not_installed("stringi", "1.2.2")
+
   expect_equal(str_match(NA, "(a)"), matrix(NA_character_, 1, 2))
   expect_equal(str_match(character(), "(a)"), matrix(character(), 0, 2))
 })