fix typo

autoload/airline/builder.vim

@@ -90,7 +90,7 @@ function! s:prototype.build() dict
       " need to fix highlighting groups, since we
       " have skipped a section, we actually need
       " the previous previous group and so the
-      " seperator goes from the previous previous group
+      " separator goes from the previous previous group
       " to the current group
       let pgroup = group
     endif
@@ -106,12 +106,12 @@ function! s:prototype.build() dict
         let line .= '%#'.group.'#'
       elseif split
         if !is_empty
-          let line .= s:get_transitioned_seperator(self, prev_group, group, side)
+          let line .= s:get_transitioned_separator(self, prev_group, group, side)
         endif
         let split = 0
       else
         if !is_empty
-          let line .= s:get_seperator(self, prev_group, group, side)
+          let line .= s:get_separator(self, prev_group, group, side)
         endif
       endif
       let line .= is_empty ? '' : s:get_accented_line(self, group, contents)
@@ -137,7 +137,7 @@ function! airline#builder#should_change_group(group1, group2)
       \ ||  color1[2] != color2[2] || color1[3] != color2[3]
 endfunction
 
-function! s:get_transitioned_seperator(self, prev_group, group, side)
+function! s:get_transitioned_separator(self, prev_group, group, side)
   let line = ''
   if get(a:self._context, 'tabline', 0) && get(g:, 'airline#extensions#tabline#alt_sep', 0) && a:group ==# 'airline_tabsel' && a:side
     call airline#highlighter#add_separator(a:prev_group, a:group, 0)
@@ -152,9 +152,9 @@ function! s:get_transitioned_seperator(self, prev_group, group, side)
   return line
 endfunction
 
-function! s:get_seperator(self, prev_group, group, side)
+function! s:get_separator(self, prev_group, group, side)
   if airline#builder#should_change_group(a:prev_group, a:group)
-    return s:get_transitioned_seperator(a:self, a:prev_group, a:group, a:side)
+    return s:get_transitioned_separator(a:self, a:prev_group, a:group, a:side)
   else
     return a:side ? a:self._context.left_alt_sep : a:self._context.right_alt_sep
   endif

autoload/airline/extensions/bufferline.vim

@@ -20,7 +20,7 @@ function! airline#extensions#bufferline#init(ext)
   endif
 
   if exists("+autochdir") && &autochdir == 1
-    " if 'acd' is set, vim-airline uses the path section, so we need ot redefine this here as well
+    " if 'acd' is set, vim-airline uses the path section, so we need to redefine this here as well
     call airline#parts#define_raw('path', '%{bufferline#refresh_status()}'.bufferline#get_status_string())
   else
     call airline#parts#define_raw('file', '%{bufferline#refresh_status()}'.bufferline#get_status_string())

autoload/airline/extensions/example.vim

@@ -23,7 +23,7 @@ function! airline#extensions#example#init(ext)
   call airline#parts#define_raw('cats', '%{airline#extensions#example#get_cats()}')
 
   " Next up we add a funcref so that we can run some code prior to the
-  " statusline getting modifed.
+  " statusline getting modified.
   call a:ext.add_statusline_func('airline#extensions#example#apply')
 
   " You can also add a funcref for inactive statuslines.
@@ -40,7 +40,7 @@ function! airline#extensions#example#apply(...)
     " section_c.
     let w:airline_section_c = get(w:, 'airline_section_c', g:airline_section_c)
 
-    " Then we just append this extenion to it, optionally using separators.
+    " Then we just append this extension to it, optionally using separators.
     let w:airline_section_c .= s:spc.g:airline_left_alt_sep.s:spc.'%{airline#extensions#example#get_cats()}'
   endif
 endfunction

autoload/airline/extensions/rufo.vim

@@ -32,7 +32,7 @@ function! airline#extensions#rufo#apply(...)
     " section_z.
     let w:airline_section_z = get(w:, 'airline_section_z', g:airline_section_z)
 
-    " Then we just append this extenion to it, optionally using separators.
+    " Then we just append this extension to it, optionally using separators.
     let w:airline_section_z .= '%{airline#extensions#rufo#get_status()}'
   endif
 endfunction

autoload/airline/extensions/tabline/builder.vim

@@ -71,7 +71,7 @@ endfunction
 
 " Compute the change in size of the tabline caused by separators
 "
-" This should be kept up-to-date with |s:get_transitioned_seperator| and
+" This should be kept up-to-date with |s:get_transitioned_separator| and
 " |s:get_separator| in autoload/airline/builder.vim
 function! s:get_separator_change_with_end(new_group, old_group, new_end_group, old_end_group, sep_size, alt_sep_size)
   let sep_change = 0