Reformat warn variables for easier editing.

Reviewed-by: NRichard Levitte <levitte@openssl.org>

Configure

@@ -76,16 +76,38 @@ my $usage="Usage: Configure [no-<cipher> ...] [enable-<cipher> ...] [experimenta
 # Minimum warning options... any contributions to OpenSSL should at least get
 # past these.
 
-my $gcc_devteam_warn = "-Wall -pedantic -DPEDANTIC -Wno-long-long -Wsign-compare -Wmissing-prototypes -Wshadow -Wformat -Wtype-limits -Werror -DREF_DEBUG -DDEBUG_UNUSED";
+my $gcc_devteam_warn = "-DPEDANTIC -DREF_DEBUG -DDEBUG_UNUSED"
+        . " -pedantic"
+        . " -Wall"
+        . " -Wno-long-long"
+        . " -Wsign-compare"
+        . " -Wmissing-prototypes"
+        . " -Wshadow"
+        . " -Wformat"
+        . " -Wtype-limits"
+        . " -Werror"
+        ;
 
 # These are used in addition to $gcc_devteam_warn when the compiler is clang.
 # TODO(openssl-team): fix problems and investigate if (at least) the
 # following warnings can also be enabled:
-# -Wswitch-enum, -Wunused-macros, -Wmissing-field-initializers,
-# -Wcast-align,
-# -Wunreachable-code -Wunused-parameter -Wlanguage-extension-token
-# -Wextended-offsetof
-my $clang_devteam_warn = "-Wno-unused-parameter -Wno-missing-field-initializers -Wno-language-extension-token -Wno-extended-offsetof -Wconditional-uninitialized -Qunused-arguments -Wincompatible-pointer-types-discards-qualifiers -Wmissing-variable-declarations";
+#       -Wswitch-enum
+#       -Wunused-macros
+#       -Wcast-align
+#       -Wunreachable-code
+#       -Wlanguage-extension-token
+#       -Wextended-offsetof
+my $clang_devteam_warn = ""
+        . " -Qunused-arguments"
+        . " -Wextra"
+        . " -Wno-unused-parameter"
+        . " -Wno-missing-field-initializers"
+        . " -Wno-language-extension-token"
+        . " -Wno-extended-offsetof"
+        . " -Wconditional-uninitialized"
+        . " -Wincompatible-pointer-types-discards-qualifiers"
+        . " -Wmissing-variable-declarations"
+        ;
 
 # These are used in addition to $gcc_devteam_warn unless this is a mingw build.
 # This adds backtrace information to the memory leak info.