moved -Werror from default build target to debug

Makefile

@@ -9,10 +9,10 @@ BIN     = lsmount
 OBJ     = lsmount.o lsmgrid.o options.o lsmcolors.o helper.o
 VPATH   = src
 
-all: CFLAGS += -O2 -Wall -Werror -pedantic -fPIE -D_FORTIFY_SOURCE=1
+all: CFLAGS += -O2 -Wall -pedantic -fPIE -D_FORTIFY_SOURCE=1
 all: $(BIN)
 
-debug: CFLAGS += -g -Og -DDEBUG -Wextra -pedantic  -Wcast-qual -Wcast-align -Wformat -Wformat-nonliteral -Wformat-security  -Winit-self -Wmissing-include-dirs -Wno-suggest-attribute=noreturn -Wno-write-strings -Wpointer-arith -Wredundant-decls -Wundef -Wpacked -Wunreachable-code  -Wno-unused-parameter -Wconversion -Wshadow -Wstrict-prototypes -Wbad-function-cast -Wold-style-definition -Wmissing-prototypes -Wmissing-declarations -Wnested-externs
+debug: CFLAGS += -g -Og -DDEBUG -Werror -Wextra -pedantic  -Wcast-qual -Wcast-align -Wformat -Wformat-nonliteral -Wformat-security  -Winit-self -Wmissing-include-dirs -Wno-suggest-attribute=noreturn -Wno-write-strings -Wpointer-arith -Wredundant-decls -Wundef -Wpacked -Wunreachable-code  -Wno-unused-parameter -Wconversion -Wshadow -Wstrict-prototypes -Wbad-function-cast -Wold-style-definition -Wmissing-prototypes -Wmissing-declarations -Wnested-externs
 debug: $(BIN)
 
 lsmount:   lsmount.o lsmgrid.o options.o lsmcolors.o helper.o