Allow more flexible error message

Error messages on R 3.7 are different to what I expected. This
commit matches the error message more flexibly so that I still
catch the key component of the error message while making the tests
more robust.

.travis.yml

@@ -3,6 +3,7 @@
 language: R
 sudo: false
 cache: packages
+latex: false
 
 matrix:
   include:

tests/testthat/test-match_all_against_all.R

@@ -143,7 +143,7 @@ test_that("match_all_against_all checks used dots", {
 
   expect_error(
     match_all_against_all(x, y, bad_argument = "bad_argument"),
-    "problematic arguments",
+    "bad_argument",
     class = "rlib_error_dots_unused"
   )
 })

tests/testthat/test-string_similarity.R

@@ -59,7 +59,7 @@ test_that("string_similariry errors with misspelled argument passed to `...`", {
   # Misspelled weight as weig(th)
   expect_error(
     string_similarity(x, y, method = "jw", p = 0.1, weigth = weights),
-    "problematic.*weigth",
+    "weigth",
     class = "rlib_error_dots_unused"
   )
 })
@@ -68,7 +68,7 @@ test_that("string_similariry errors with misspelled `method`", {
   expect_error(string_similarity("a", "a", method = "jw"), NA)
   expect_error(
     string_similarity("a", "a", metod = "jw"),
-    "problematic.*metod",
+    "metod",
     class = "rlib_error_dots_unused"
   )
 })