vim-patch:8.2.3482: reading beyond end of line ending in quote and backslash

Problem:    Reading beyond end of line ending in quote and backslash.
Solution:   Check for non-NUL after backslash. (closes vim/vim#8964)
78e0fa4cf4

src/nvim/indent_c.c

@@ -152,11 +152,11 @@ static char_u *skip_string(char_u *p)
    */
   for (;; p++) {
     if (p[0] == '\'') {                     // 'c' or '\n' or '\000'
-      if (!p[1]) {                          // ' at end of line
+      if (p[1] == NUL) {                    // ' at end of line
         break;
       }
       i = 2;
-      if (p[1] == '\\') {                   // '\n' or '\000'
+      if (p[1] == '\\' && p[2] != NUL) {    // '\n' or '\000'
         i++;
         while (ascii_isdigit(p[i - 1])) {   // '\000'
           i++;

src/nvim/testdir/test_cindent.vim

@@ -5296,4 +5296,11 @@ func Test_cindent_pragma()
   enew! | close
 endfunc
 
+func Test_backslash_at_end_of_line()
+  new
+  exe "norm v>O'\\\<C-m>-"
+  exe "norm \<C-q>="
+  bwipe!
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab