Fix typos

lisp/org-latex.el

@@ -534,21 +534,21 @@ This function should accept the file name as its single argument."
 	  (repeat :tag "Shell command sequence"
 		  (string :tag "Shell command"))
 	  (const :tag "2 runs of pdflatex"
-		 '("pdflatex -interaction nonstopmode -output-directory %o %f"
+		 ("pdflatex -interaction nonstopmode -output-directory %o %f"
 		   "pdflatex -interaction nonstopmode -output-directory %o %f"))
 	  (const :tag "3 runs of pdflatex"
-		 '("pdflatex -interaction nonstopmode -output-directory %o %f"
+		 ("pdflatex -interaction nonstopmode -output-directory %o %f"
 		   "pdflatex -interaction nonstopmode -output-directory %o %f"
 		   "pdflatex -interaction nonstopmode -output-directory %o %f"))
 	  (const :tag "pdflatex,bibtex,pdflatex,pdflatex"
-		 '("pdflatex -interaction nonstopmode -output-directory %o %f"
+		 ("pdflatex -interaction nonstopmode -output-directory %o %f"
 		   "bibtex %b"
 		   "pdflatex -interaction nonstopmode -output-directory %o %f"
 		   "pdflatex -interaction nonstopmode -output-directory %o %f"))
 	  (const :tag "texi2dvi"
-		 '("texi2dvi -p -b -c -V %f"))
+		 ("texi2dvi -p -b -c -V %f"))
 	  (const :tag "rubber"
-		 '("rubber -d --into %o %f"))
+		 ("rubber -d --into %o %f"))
 	  (function)))
 
 (defcustom org-export-pdf-logfiles